CSIR-UGC-NET/JRF GATE CHEMISTRY TEST : GENERAL ORGANIC CHEMISTRY (GOC)
|
|
- Joella Mason
- 6 years ago
- Views:
Transcription
1 2 1 SIR-UG-ET/JRF GATE EMISTRY TEST : GEERAL RGAI EMISTRY (G) Time 00: 50 our Date : M.M. : 60 ISTRUTI : 1. There are Two Parts. Part-A contains 10 objective type questions, each question carry 2 marks and Part-B contains 10 objective type questions, each question carry 4 marks. 2. There is negative 25% will be deducted for each wrong answer. 3. Attempt all the questions, use of calculator is not allowed. PART - A 1. Arrange the order of basicity of the following molecules ( 3) 3 Sn 2 ( 3) 3 Si 2 () ( 3) 3 2 (a) A > > B (b) > B > A (c) B > A > (d) A > B > ( ( 3 ) 3 ) () The correct order of basicity is (a) A > B > > D (b) D > > A > B (c) D > > B > A (d) > B > A > D 3. The correct order of nucleophilicity is (a) 65Se 65S 65 (b) 65 65S 65Se (c) 65 65Se 65S (d) 65S 65Se Arrange the order of nucleophilicity in increasing order: (a) < F < 2 < 3 (b) < 2 < F < 3 (c) 3 < 2 < < F (d) < < F < 3 South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,
2 2 5. Arrange the following in order of their increasing stretching frequency: (I) (II) (III) (a) I < III < II (b) I < II < III (c) III < II < I (d) II < III < I 6. Arrange the acidic character of the following caroboxylic acid: (I) (II) (III) (IV) (a) A < B < < D (b) D < < B < A (c) < A < B < D (d) B < A < < D 7. Which of the following interaction is not related with hyperconjugation: * * (a) (b) (c) p (d) * 8. Arrange the order of basicity of the following compounds: () (a) A < B < < D (b) B < < D < A (c) A < B < D < (d) D < < B < A 9. Which of the following statement is not correct: (a) The order of nucleophilicity is R < R S < R Se (b) The order of basicity is R Se < R S < R (c) The order of basicity and nucleophilicity both are same for above mentioned species (d) The order of polarization of donor atom is R Se > R S > R 10. Arrange the order of electrophilic attack for the following compounds: F 3 l 3 Br 3 I 3 () (a) D < < B < A (b) A < B < < D (c) D < < A < B (d) A < B < D < South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,
3 11. onsider the following compounds PART - B 3 Ph Ph 2 () Which of the following statement is true: (a) the rate of alkaline hydrolysis is faster than that of (b) the rate of alkaline hydrolysis of is faster than that of () (c) the rate of alkaline hydrolysis of = (d) the rate of alkaline hydrolysis of () is faster than that of 12. onsider the hydrolysis of bicyclic compound and monocyclic compound 3 X X Which of the following statement is true about the above hydrolysis reaction (a) the hydrolysis of compound is slower than that of compound (b) the hydrolysis of compound is slower than compound (c) the hydrolysis of compound = hydrolysis of compound (d) none of these 13. rder of basicity towards BF 3 for the following compound is: Ph () (a) A < B < < D (b) D < < B < A (c) D < < A < B (d) A < B < D < 14. Arrange the acidic character of marked proton in the following compound in increasing order: () (a) D < < B < A (b) A < < B < D (c) A < < D < B (d) B < D < < A South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,
4 15. The correct order of stability of the following carbocation: () (a) A > B > > D (b) D > > B > A (c) A > B > D > (d) D > B > > A 16. Arrange the following in decreasing order of their stability () (E) (F) (a) F > D > E > A > B > (c) B > > A > D > E > F 17. The correct order of pk a value (b) > B > A > E > D > F (d) > A > B > D > E > F 3 3 () Br (a) B < > E > A > D (b) > A > D > E > B (c) A > > D > B > E (d) B > E > D > A > 18. The correct order of basicity of the following heterocyclic compound is (E) () (a) A < B < < D (b) D < < A < B (c) D < < B < A (d) B < A < < D South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,
5 19. Which of the following diones are not readily soluble in aqueous a and does not give red colour with Fel 3 solution 5 (a) (b) (c) (d) 20. The correct order of reactivity towards hydrolysis of the following functional gropu is R l R (a) A > B > > D > E (c) D > A > B > E > R () R Ar R R 2 (b) A > > B > E > D (d) A> > B > D > E (E) R South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,
6 6 SIR-UG-ET/JRF GATE EMISTRY TEST : GEERAL RGAI EMISTRY (G) Date : [ASWERS] PART-A 1. (d) 2. (c) 3. (a) 4. (a) 5. (b) 6. (b) 7. (d) 8. (a) 9. (c) 10. (a) PART-B 11. (a) 12. (a) 13. (b) 14. (b) 15. (a) 16. (b) 17. (d) 18. (c) 19. (d) 20. (d) South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,
IIT-JAM CHEMISTRY TEST : STEREOCHEMISTRY Time 00 : 45 Hour Date : M.M. : 35 INSTRUCTION:
1 T-JAM EMSTRY TEST : STEREEMSTRY Time 00 : 45 our Date : 25-06-2017 M.M. : 35 NSTRUTN: 1. Attempt all the questions. 2. Section-A contains 10 Multiple hoice Questions (MQ). Each question has 4 choices
More informationSouth Delhi : 28-A/11, Jia Sarai, Near-IIT Hauz Khas, New Delhi-16, Ph : ,
1 South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, : 011-26851008, 26861009 orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, : 011-65462244, 65662255 2 PART - A
More informationRegn. No. South Delhi : 28-A/11, Jia Sarai, Near-IIT Hauz Khas, New Delhi-16, Ph : ,
1 2. Section-A contains 30 Multiple Choice Questions (MCQ). Each question has 4 choices,, and, for its answer, out of which LY E is correct. From Q.1 to Q.10 carries 1 Marks and Q.11 to Q.30 carries 2
More informationRegn. No. South Delhi : 28-A/11, Jia Sarai, Near-IIT Metro Station, New Delhi-16, Ph : ,
1 2. Section-A contains 30 Multiple Choice Questions (MCQ). Each question has 4 choices,, and, for its answer, out of which LY E is correct. From Q.1 to Q.10 carries 1 Marks and Q.11 to Q.30 carries 2
More informationdeduction of ⅓ marks for a 1-mark question and ⅔ marks for a 2-mark question. 8. Non-programmable type Calculator is allowed
1 2. This question paper consists of 2 sections, General Aptitude (GA) for 15 marks and the subject specific GATE paper for 85 marks. Both these sections are compulsory. The GA section consists of 10 questions.
More informationIIT-JAM-2014 (CHEMISTRY) (CODE-A)
1 IIT-JAM-2014 (EMISTRY) (DE-A) PART-I : BJETIVE QUESTIS Q. 1 - Q. 10 carry one mark each. 1. For square matrices M and, if M = M and M =, then: M 2 = M and 2 = 2 and M 2 = M M 2 M and 2 M 2 M and 2 =
More informationdeduction of ⅓ marks for a 1-mark question and ⅔ marks for a 2-mark question. 8. Non-programmable type Calculator is allowed
1. This question paper consists of sections, General Aptitude (GA) for 15 marks and the subject specific GATE paper for 85 marks. Both these sections are compulsory. The GA section consists of 10 questions.
More informationRegn. No. North Delhi : 33-35, Mall Road, G.T.B. Nagar (Opp. Metro Gate No. 3), Delhi-09, Ph: ,
1. Section-A contains 0 Multiple Choice Questions (MCQ). Each question has 4 choices (a), (b), (c) and (d), for its answer, out of which ONLY ONE is correct. From Q.1 to Q.10 carries 1 Marks and Q.11 to
More information(A) II > I > III > IV (B) II > I > IV > III (C) III > IV > I > II (D) IV > II > I > III 2. The major product formed in the following reaction is (C)
Section-A Multiple Choice Questions (MCQ) Q.1 Q.10 carry NE mark each. 1. The correct order of pka for the following compounds is 1 C 3 C C N N (I) (II) (III) (IV) II > I > III > IV II > I > IV > III III
More informationSIX MEMBERED AROMATIC HETEROCYCLES
SIX MEMBERED AROMATIC HETEROCYCLES Ṇ. Pyridine Pyridine is aromatic as there are six delocalized electrons in the ring. Six-membered heterocycles are more closely related to benzene as they are aromatic
More informationNUCLEAR MAGNETIC RESONANCE
uclear Magnetic Resonance CAPTER UCLEAR MAGETIC REOACE Properties of nucleus to give MR signal: All the nucleus their isotopes present in periodic table are not MR active. For a nucleus to be MR active
More informationAcids and Bases. Acids and Bases
BrØnsted-Lowry A BrØnsted-Lowry acid is a proton donor. A BrØnsted-Lowry base is a proton acceptor. H + = proton BrØnsted-Lowry Some molecules contain both hydrogen atoms and lone pairs and thus, can act
More informationD.U. M.Sc. CHEMISTRY ENTRANCE (SET-A)
1 D.U. M.Sc. CEMISTRY ETRACE - 2017 (SET-A) 1. The oxidation states of oxygen in 2 F 2 is +1 +2 +4 2 2. Which among the following is a powerful oxidizer? F 2 Cl 2 3 I 2 3. The most suitable in water among
More informationChapter 3. Alkenes And Alkynes
Chapter 3 Alkenes And Alkynes Alkenes ydrocarbons containing double bonds C C double bond the functional group center of reactivity Molecular Formula of Alkene Acyclic alkene: C n 2n Cyclic alkene: C n
More information1 33-35, Mall Road, G.T.B. agar, pp. G.T.B. agar tro Station Gate o. 3, Delhi-110 009 8-A/11, Jia Sarai, ear IIT tro Station, Gate o. 3, Delhi-110 009 DWLAD CAREER EDEAVUR APP E : info@careerendeavour.com
More informationPMT GCE MARKING SCHEME. CHEMISTRY AS/Advanced
GE MARKING SEME EMISTRY AS/Advanced JANUARY 2011 4 SETIN A 1. (a) (i) 6 5 N 2 (1) the blue light is absorbed / there is no yellow light to be reflected / transmitted (1) equivalent (1) [3] (b) (i) aluminium
More informationChemistry 2000 Lecture 18: Reactions of organic compounds
hemistry 2000 Lecture 18: Reactions of organic compounds Marc R. Roussel March 6, 2018 Marc R. Roussel Reactions of organic compounds March 6, 2018 1 / 27 Reactions of organic compounds Organic chemists
More informationProblem Set #3 Solutions
Problem Set #3 Solutions 1. a) C 3 (methyl group) Since carbon (E = 2.5) is slightly more electronegative than hydrogen (E = 2.2), there will be a small dipole moment pulling electron density away from
More informationUGC POINT ACADEMY LEADING INSTITUE FOR CSIR-JRF/NET, GATE & JAM CHEMICAL SCIENCE TEST SEREIS # 2. Organic Chemistry. Instructions
UGC PINT ACADEMY LEADING INSTITUE FR CSIR-JRF/NET, GATE & JAM BKLET CDE C Date: 24/11/2015 CEMICAL SCIENCE TEST SEREIS # 2 rganic Chemistry SUBJECT CDE 01 Timing: 2:00 Maximum Marks: 80 Instructions 1.
More informationOChem 1 Mechanism Flashcards. Dr. Peter Norris, 2018
OChem 1 Mechanism Flashcards Dr. Peter Norris, 2018 Mechanism Basics Chemical change involves bonds forming and breaking; a mechanism describes those changes using curved arrows to describe the electrons
More informationChapter 2 Lecture Outline
Organic Chemistry, Second Edition Janice Gorzynski Smith University of Hawai i Chapter 2 Lecture Outline Prepared by Rabi Ann Musah State University of New York at Albany Copyright The McGraw-Hill Companies,
More informationOChem 1 Mechanism Flashcards. Dr. Peter Norris, 2015
OChem 1 Mechanism Flashcards Dr. Peter Norris, 2015 Mechanism Basics Chemical change involves bonds forming and breaking; a mechanism describes those changes using curved arrows to describe the electrons
More informationWhen 2-bromopentane reacts with ethanolic KOH, two structurally isomeric alkenes are formed.
Q1. Organic reaction mechanisms help chemists to understand how the reactions of organic compounds occur. The following conversions illustrate a number of different types of reaction mechanism. (a) When
More informationdeduction of ⅓ marks for a 1-mark question and ⅔ marks for a 2-mark question.
1 2. This question paper consists of 2 sections, General Aptitude (GA) for 15 marks and the subject specific GATE paper for 85 marks. Both these sections are compulsory. The GA section consists of 10 questions.
More informationReaction mechanisms offer us insights into how reactions work / how molecules react with one another.
Introduction 1) Lewis Structures 2) Representing Organic Structures 3) Geometry and Hybridization 4) Electronegativities and Dipoles 5) Resonance Structures (a) Drawing Them (b) Rules for Resonance 6)
More informationElectrophilic Aromatic Substitution
Electrophilic Aromatic Substitution Chemistry 391 10/14/02 Lecture 5 Diazonium Salts OH NH 2 NaNO 2 aq. HCl N N Cl H 2 O HCl Cl + H 3 O + Chemistry 391 10/16/02 Diazonium Salts The -N + 2 group of an arenediazonium
More informationWeek 4. Even harder stuff!
Week 4 Even harder stuff! Focus: SN1 and SN2 Two organic reactions Learn about two basic pathways for how these reactions happen Focus on stereochemistry Focus: SN1 and SN2 You need a couple of things
More informationFIVE MEMBERED AROMATIC HETEROCYCLES
FIVE MEMBERED AROMATIC HETEROCYCLES 63 Electrophilic aromatic substitution reaction of five membered aromatic heterocycles X = O, S or NH a-substitution b-substitution The Substitution is regioselective
More informationTopic-1 Lowry - Bronsted and Lewis theory of acids and bases with examples and applications
Topic-1 Lowry - Bronsted and Lewis theory of acids and bases with examples and applications VERY SHORT ANSWER QUESTIONS 1. What is bronsted acid and base give one example? Strength of bronsted acids and
More informationCarbonyl Chemistry: Fundamentals
Carbonyl Chemistry: Fundamentals What is a carbonyl group and what are its properties? A carbonyl is any compound that has a carbon double-bonded to an oxygen Carbonyls can behave as a nucleophile OR an
More informationRegn. No. North Delhi : 33-35, Mall Road, G.T.B. Nagar (Opp. Metro Gate No. 3), Delhi-09, Ph: ,
. Sectio-A cotais 30 Multiple Choice Questios (MCQ). Each questio has 4 choices (a), (b), (c) ad (d), for its aswer, out of which ONLY ONE is correct. From Q. to Q.0 carries Marks ad Q. to Q.30 carries
More information1 33-35, Mall oad, G.T.B. agar, pp. G.T.B. agar tro Station Gate o. 3, Delhi-110 009 Delhi-110 016 E : info@careerendeavour.com South Delhi : 8-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, : 011-6851008,
More informationChapter 9. Nucleophilic Substitution and ß-Elimination
Chapter 9 Nucleophilic Substitution and ß-Elimination Nucleophilic Substitution Nucleophile: From the Greek meaning nucleus loving. A molecule or ion that donates a pair of electrons to another atom or
More informationChapter 6. Chemical Reactivity and Reaction Mechanisms
hapter 6 hemical Reactivity and Reaction Mechanisms hemical Reactivity Enthalpy A simple chemical reaction can be broken down into bond creating and bond breaking components: A-B + Y-Z A-Y + B-Z A-B A
More informationChapter 3 An Introduction to Organic Reactions: Acids and Bases
There are 4 types of Organic Reactions Chapter 3 An Introduction to Organic Reactions: SUBSTITUTION: ADDITION: X Y + A X A + Y Example Example A B + X Y A B X Y ELIMINATION There are 4 Types of Organic
More informationORGANIC CHEMISTRY CHEM 2210 SECOND REVIEW EXAM FALL *A*
ORGANI EMISTRY EM 2210 SEOND REVIEW EXAM ALL 1999 - *A* 1. What is the IUPA name of the compound shown? O A. cis-1-chloro-4-cyclohexanol B. cis-4-chlorocyclohexanol. trans-1-chloro-4-cyclohexanol trans-4-chlorocyclohexanol
More information3.2.8 Haloalkanes. Elimination. 148 minutes. 145 marks. Page 1 of 22
3.2.8 Haloalkanes Elimination 148 minutes 145 marks Page 1 of 22 Q1. Reaction of 2-bromobutane with potassium hydroxide can produce two types of product depending on the solvent used. In aqueous solution,
More informationPAPER No. 05: TITLE: ORGANIC CHEMISTRY-II MODULE No. 12: TITLE: S N 1 Reactions
Subject hemistry Paper o and Title Module o and Title Module Tag 05, ORGAI EMISTRY-II 12, S 1 Reactions E_P5_M12 EMISTRY PAPER o. 05: TITLE: ORGAI EMISTRY-II TABLE OF OTETS 1. Learning Outcomes 2. Introduction
More informationAcid-Base -Bronsted-Lowry model: -Lewis model: -The more equilibrium lies to the right = More [H 3 O + ] = Higher K a = Lower pk a = Stronger acid
Revision Hybridisation -The valence electrons of a Carbon atom sit in 1s 2 2s 2 2p 2 orbitals that are different in energy. It has 2 x 2s electrons + 2 x 2p electrons are available to form 4 covalent bonds.
More informationHomework for Chapter 7 Chem 2310
omework for Chapter 7 Chem 2310 Name I. Introduction to Reactions 1. Explain why the following fits the definition of a chemical reaction. C 3 Na C 3 Na 2. Using the chemical reaction above, give all compounds
More informationTEST 2 (AIEEE) Dr. Sangeeta Khanna Ph.D CIRCLE INSTRUCTIONS:
INSTRUTINS: TEST (AIEEE) M.MARKS: 50. This test consist of 50 questions.. The test duration is of 90 minutes. 3. Use blue or black ball-point pen to complete darken the appropriate circle.. Fill your particulars
More informationOrganic Chemistry Review: Topic 10 & Topic 20
Organic Structure Alkanes C C σ bond Mechanism Substitution (Incoming atom or group will displace an existing atom or group in a molecule) Examples Occurs with exposure to ultraviolet light or sunlight,
More informationPrerna Tower, Road No - 2, Contractors Area, Bistupur, Jamshedpur-01, Phone : ,
hemistry Paper- I Jee Advance 2014 PART II - EMISTRY SETI - I (ne or More ptions orrect Type) This section contains 10 multiple choice questions. Each question has four choices (A) (B) () and (D) out of
More informationCHEMISTRY. Module No and Title Module-, Electrophilic Aromatic Substitution: The ortho/para ipso attack, orientation in other ring systems.
Subject Chemistry Paper No and Title Paper-5, Organic Chemistry-II Module No and Title Module-, Electrophilic Aromatic Substitution: The ortho/para Module Tag CHE_P5_M29 TABLE OF CONTENTS 1. Learning Outcomes
More informationCHEM Chapter 16. Chemistry of Benzene: Electrophilic Aromatic Substitution (homework) W
CHEM 2425. Chapter 16. Chemistry of Benzene: Electrophilic Aromatic Substitution (homework) W Short Answer Exhibit 16-1 MATCH a structure or term from the following list with each description below. Place
More informationSynthesis Using Aromatic Materials
Chapter 10 Synthesis Using Aromatic Materials ELECTROPHILIC AROMATIC SUBSTITUTION AND DIRECTED ORTHO METALATION Copyright 2018 by Nelson Education Limited 1 10.2 p Bonds Acting as Nucleophiles Copyright
More informationResonance and M.O. View of Butadiene. Super-Conjugated or Aromatic p e - Systems
Resonance and M.. View of Butadiene The different resonance forms of butadiene suggest p bonding character between the two central carbon atoms. 2 2 2 2 carbanion 2 2 carbocation The M.. view of butadiene
More informationTHE UNIVERSITY OF CALGARY FACULTY OF CONTINUING EDUCATION FINAL EXAMINATION CHEMISTRY 351 READ ALL THE INSTRUCTIONS CAREFULLY
TE UIVERSITY F ALGARY FAULTY F TIUIG EDUATI FIAL EXAMIATI EMISTRY 351 JUE 28th 1999 Time: 3 ours READ ALL TE ISTRUTIS AREFULLY PLEASE WRITE YUR AME, STUDET I.D. UMBER BT YUR EXAM ASWER BKLET AD MPUTER
More informationChapter 17 Reactions of Aromatic Compounds
rganic Chemistry, 6 th Edition L. G. Wade, Jr. Chapter 17 Reactions of Aromatic Compounds Jo Blackburn Richland College, Dallas, TX Dallas County Community College District 2006, Prentice all Electrophilic
More informationORGANIC - EGE 5E CH. 7 - NUCLEOPHILIC SUBSTITUTION AND ELIMINATION REACTIONS
!! www.clutchprep.com CONCEPT: INTRODUCTION TO SUBSTITUTION Previously, we discussed the various ways that acids could react with bases: Recall that in these mechanisms, electrons always travel from density
More informationTHE UNIVERSITY OF CALGARY FACULTY OF SCIENCE FINAL EXAMINATION CHEMISTRY 351 READ ALL THE INSTRUCTIONS CAREFULLY
hem 351 cont'd. Page 1 of 17 TE UIVERSITY F ALGARY FAULTY F SIEE FIAL EXAMIATI EMISTRY 351 DEEMBER 17th 2001 Time: 3 ours READ ALL TE ISTRUTIS AREFULLY PLEASE WRITE YUR AME, STUDET I.D. UMBER BT YUR EXAM
More informationQUESTIONSHEET 1. ELECTROPHILIC SUBSTITUTION I (Nitration)
TOPI4 ASWERS & MARK SEMES QUESTIOSEET 1 ELETROPILI SUBSTITUTIO I (itration) a) πelectrons in arenes are delocalised electrophiles are less strongly attracted b) (i) O2 O 3 2 O (ii) oncentrated sulfuric
More informationHomework problems Chapters 6 and Give the curved-arrow formalism for the following reaction: CH 3 OH + H 2 C CH +
omework problems hapters 6 and 7 1. Give the curved-arrow formalism for the following reaction: : 3 - : 2 : 3 2-3 3 2. In each of the following sets, arrange the compounds in order of decreasing pka and
More informationChapter 2: Acids and Bases
1. Which of the following statements is a correct definition for a Brønsted-Lowry acid? A) Proton acceptor C) Electron pair acceptor B) Electron pair donor D) Proton donor 2. Which of the following statements
More informationCHAPTER 7. Further Reactions of Haloalkanes: Unimolecular Substitution and Pathways of Elimination
CHAPTER 7 Further Reactions of Haloalkanes: Unimolecular Substitution and Pathways of Elimination 7-1 Solvolysis of Tertiary and Secondary Haloalkanes The rate of S N 2 reactions decrease dramatically
More informationSouth Delhi : 8-A/, Jia Sarai, ear-iit auz Khas, ew Delhi-6, Ph : 0-685008, 686009 orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: 0-654644, 656655 PART-A. If AB is parallel
More informationChapter 15: Enyzmatic Catalysis
Chapter 15: Enyzmatic Catalysis Voet & Voet: Pages 496-508 Slide 1 Catalytic Mechanisms Catalysis is a process that increases the rate at which a reaction approaches equilibrium Rate enhancement depends
More informationChapter 17. Reactions of Aromatic Compounds
Chapter 17 Reactions of Aromatic Compounds Electrophilic Aromatic Substitution Although benzene s pi electrons are in a stable aromatic system, they are available to attack a strong electrophile to give
More information11/5/ Conjugated Dienes. Conjugated Dienes. Conjugated Dienes. Heats of Hydrogenation
8.12 Sites of unsaturation Many compounds have numerous sites of unsaturation If sites are well separated in molecule they react independently If sites are close together they may interact with one another
More informationSolution problem 22: Non-Benzoid Aromatic Sytems
Solution problem 22: on-enzoid Aromatic Sytems 22.1 & 22.2 Each double bond and each heteroatom (, ) with lone pairs donates 2 π- electrons as well as a negative charge. oron or a positive charge does
More informationChemistry 14D Winter 2018 Final Part B Page 1
Chemistry 14D Winter 2018 Final Part B Page 1 K to use "Ph" anywhere on this exam where appropriate. Exceeding the specified word limit on an answer will result in a point deduction for that answer. Transition
More informationORGANIC - CLUTCH CH ADDITION REACTIONS.
!! www.clutchprep.com CONCEPT: GENERAL MECHANISM Addition reactions are ones in which 1 bond is broken and 2 new bonds are formed. They are the inverse of reactions EXAMPLE: Provide the mechanism for the
More informationName: Signature of the Candidate READ INSTRUCTIONS ON THE LEFT SIDE OF THE PAGE CAREFULLY.
Date: 06-06-016 PAPER DE : Y DU M.Sc. hemistry Entrance 016 TIME: :00 URS Test Series-IV M.M.: 300 [PAPER Inorganic WIT hemistry SLUTIN] 1. The question-cum-answer booklet has 16 pages and has 75 questions.
More informationChapter 5. Nucleophilic aliphatic substitution mechanism. by G.DEEPA
Chapter 5 Nucleophilic aliphatic substitution mechanism by G.DEEPA 1 Introduction The polarity of a carbon halogen bond leads to the carbon having a partial positive charge In alkyl halides this polarity
More informationPractice Multiple-Choice Questions for Ending Chem 21 and/or Starting Chem 22
Practice Multiple-Choice Questions for Ending Chem 21 and/or Starting Chem 22 Includes information from chapters 5-10 of the third edition of Klein s Organic Chemistry text. 1. Which of the following compounds
More informationCHEMISTRY Topic #4: Electrophilic Addition Reactions of Alkenes and Alkynes Fall 2018 Dr. Susan Findlay
EMISTRY 2600 Topic #4: Electrophilic Addition Reactions of Alkenes and Alkynes Fall 2018 Dr. Susan Findlay rganic Reactions (EM 2500 Review) Most reactions in organic chemistry fall into one (or more)
More informationDEPARTMENT OF MEDICINAL CHEMISTRY SCHOOL OF PHARMACY Medicinal Chemistry I FINAL EXAM MEDC 501 Dr. Umesh R. Desai October 20, 2006
DEPARTMET F MEDIIAL EMISTRY SL F PARMAY dicinal hemistry I FIAL EXAM MED 501 Dr. Umesh R. Desai ctober 20, 2006 STUDET AME R PLEDGE Ring Size Saturated Partly Saturated Unsaturated Rings with 3 -iridine
More informationChem 112A: Final Exam
Chem 112A: Final Exam December 14th, 2011 Please provide all answers in the spaces provided. You are not allowed to use a calculator for this exam, but you may use molecular model kits. nly cyclohexane
More informationLECTURE #13 Tues., Oct.18, Midterm exam: Tues.Oct.25 during class Ch.1, , 7.10, 2, Sections
CEM 221 section 01 LECTURE #13 Tues., Oct.18, 2005 Midterm exam: Tues.Oct.25 during class Ch.1, 7.2-7.5, 7.10, 2, 3.1-3.5 ASSGNED READNGS: TODAY S CLASS: Sections 4.1 4.6 NEXT CLASS: rest of Ch.4 http://artsandscience.concordia.ca/facstaff/p-r/rogers
More informationRegn. No. South Delhi : 28-A/11, Jia Sarai, Near-IIT Hauz Khas, New Delhi-16, Ph : ,
1. Section-A contains 3 Multiple Choice Questions (MCQ). Each question has 4 choices,, and, for its answer, out of which ONLY ONE is correct. Fro Q.1 to Q.1 carries 1 Marks and Q.11 to Q.3 carries Marks
More information4. Alkenes are nucleophiles and like to attack electrophiles, like protons, with positive charges:
Mechanism Steps: Answer Key 1. Alcohols are nucleophilic and like to grab protons,, to form water molecules: 2. 3. 4. Alkenes are nucleophiles and like to attack electrophiles, like protons, with positive
More informationFOURTH EXAMINATION. (1)..20 pts... (2)..24 pts... (3)..18 pts... (4)..12 pts... (5)..12 pts... (6).. 6 pts... (7).. 8 pts... Bonus 4 pts...
Name: CHEM 331 FURTH EXAMINATIN All answers should be written on the exam in the spaces provided. Clearly indicate your answers in the spaces provided; if I have to guess as to what or where your answer
More informationClass XII: Chemistry Chapter 13: Amines Top concepts
Class XII: Chemistry Chapter 13: Amines Top concepts 1. Amines are regarded as derivatives of ammonia in which one, two or all three hydrogen atoms are replaced by alkyl or aryl group 2. Classification
More informationElimination. S N 2 in synthesis. S N 2 and E2. Kinetics. Mechanism bimolecular
bimolecular B: limination B * 1 Kinetics 2 ate determining step involves both reactants rate = k [base] [-] Second order kinetics 2 B + 2 = limination, 2 nd order 2 3 2 4 Zaitsev s ule In some cases a
More informationQ.1 Predict what will happen when SiCl 4 is added to water.
Transition etals F325 1 The aqueous chemistry of cations Hydrolysis when salts dissolve in water the ions are stabilised by polar water molecules hydrolysis can occur and the resulting solution can become
More informationLecture Notes Chemistry 342 Mukund P. Sibi Lecture 33 Amines
Lecture otes Chemistry 342 Mukund P. Sibi Amines Amines are organic compounds derived from ammonia. The nitrogen in amines contains a lone pair of electrons. The presence of this lone pair of electrons
More informationfiziks Institute for NET/JRF, GATE, IIT-JAM, M.Sc. Entrance, JEST, TIFR and GRE in Physics
Institute for ET/JRF, GTE, IIT-JM, M.Sc. Entrance, JEST, TIFR and GRE in Physics. asic Properties of uclei. asic uclear Properties n ordinary hydrogen atom has as its nucleus a single proton, whose charge
More informationMOSELEY and MODERN PERIODIC TABLE (designed by atomic numbers of elements)
MOSELEY and MODERN PERIODIC TABLE (designed by atomic numbers of elements) 1 PERIODS: Period number = Number of basic energy levels = The principal quantum number The horizontal lines in the periodic system
More information75. A This is a Markovnikov addition reaction. In these reactions, the pielectrons in the alkene act as a nucleophile. The strongest electrophile will
71. B SN2 stands for substitution nucleophilic bimolecular. This means that there is a bimolecular rate-determining step. Therefore, the reaction will follow second-order kinetics based on the collision
More informationTIFR-2011 (CHEMISTRY) 1. The following curve is obtained when a solution of glycine hydrochloride HOOC CH2 NH4
1 TIFR-11 (CEMITRY) 1. The following curve is obtained when a solution of glycine hydrochloride C C N4 Cl is titrated with a strong base. What are the predominant species present at point 1 shown on the
More informationReactions SN2 and SN1
Reactions SN2 and SN1 Reactivity: Functional groups can be interconverted using a great variety of reagents. Millions of organic molecules have been synthesized via a series of functional-group interconversions.
More informationEffect of nucleophile on reaction
1 Effect of nucleophile on reaction X DS c X c c X DS c + X cleophile not involved in DS of S N 1 so does not effect the reaction (well obviously it controls the formula of the product!) cleophile has
More informationCHEM120 - ORGANIC CHEMISTRY WORKSHEET 1
EM120 - RGANI EMISTRY WRKSEET 1 Some of the objectives To understand and know the hybridization concept Be able to distinguish different geometries, including basic bond lengths and angles within organic
More information1.10 Structural formulas
1.10 Structural formulas It shows which atoms are bonded to which. There are two types of structural formulas, complete Lewis structures and condensed structural formulas. In addition, there are several
More informationA-level CHEMISTRY (7405/2)
A-level EMISTRY (7405/2) Paper 2: Organic and Physical hemistry Mark scheme Specimen paper MARK SEME A-LEVEL EMISTRY 7405/2 - SPEIMEN Mark schemes are prepared by the Lead Assessment Writer and considered,
More informationChapter 4 Atoms Practice Problems
Chapter 4 Atoms Practice Problems 1) The primary substances of which all other things are composed are A) molecules. B) compounds. C) elements. D) electrons. E) protons. 2) Which of the following is a
More informationReactions. Reactions. Elimination. 2. Elimination Often competes with nucleophilic substitution. 2. Elimination Alkyl halide is treated with a base
eactions 1 eactions 2 2. limination Alkyl halide is treated with a base B: 2. limination ften competes with nucleophilic substitution LIMINATIN Nu: SUBSTITUTIN Nu Bimolecular B: limination B * * 3 Kinetics
More informationThere are two main electronic effects that substituents can exert:
Substituent Effects There are two main electronic effects that substituents can exert: RESONANCE effects are those that occur through the π system and can be represented by resonance structures. These
More informationTheophylline (TH), the structure of which is presented below, is a bronchial-dilator used for the treatment of asthma.
1 EXAM SCIETIIC CULTURE CEMISTRY PRBLEM 1: Theophylline (T), the structure of which is presented below, is a bronchial-dilator used for the treatment of asthma. 3 C 7 1 3 9 1.1 Structural study and acid-base
More informationAnswers To Chapter 1 Problems.
Answers To Chapter Problems.. (a) Both and in amides have lone pairs that can react with electrophiles. When the reacts with an electrophile +, a product is obtained for which two good resonance structures
More informationMODULE CODE: CHEM10003 ORGANIC CHEMISTRY 4 EXAM
School of Science and Sport Physical Sciences, Chemistry Paisley Campus Session 2014-15 Trimester 2 MDULE CDE: CHEM10003 RGANIC CHEMISTRY 4 EXAM Date: 15th May 2015 Time: 10.00am 12.00pm Attempt THREE
More informationCu 2+ (aq) + 4NH 3(aq) = Cu(NH 3) 4 2+ (aq) I (aq) + I 2(aq) = I 3 (aq) Fe 3+ (aq) + 6H 2O(l) = Fe(H 2O) 6 3+ (aq) Strong acids
There are three definitions for acids and bases we will need to understand. Arrhenius Concept: an acid supplies H + to an aqueous solution. A base supplies OH to an aqueous solution. This is the oldest
More informationH H H H S H H H NO 2 O H H 3 C. OMe CH 3
Fall Workshop #9 Question #1 Using the tables on pages 18-19 of SAM, the table inside the back cover of Jones, and the figure we created in class: (a) Report an estimated pka value for each hydrogen atom
More informationReversible Additions to carbonyls: Weak Nucleophiles Relative Reactivity of carbonyls: Hydration of Ketones and Aldehydes
Reversible Additions to carbonyls: Weak Nucleophiles Weak nucleophiles, such as water, alcohols, and amines, require acid or base catalysis to undergo addition to carbonyl compounds Relative Reactivity
More informationSynthesis of Nitriles a. dehydration of 1 amides using POCl 3 : b. SN2 reaction of cyanide ion on halides:
I. Nitriles Nitriles consist of the CN functional group, and are linear with sp hybridization on C and N. Nitriles are non-basic at nitrogen, since the lone pair exists in an sp orbital (50% s character
More informationChemistry Final Examinations Summer 2006 answers
Chemistry 235 - Final Examinations Summer 2006 answers A GEERAL CEMISTRY answers are given from 1-20: no reaction C 3 CC 3 Ph C C C C C 3 Et 2 2 2 B. REACTIS AD REAGETS [32 MARKS] 2. A single substance
More informationNucleophiles: nucleus liking species. Nucleophilic substitution
1 Nucleophiles: nucleus liking species Electron rich Possesses negative charge or non bonded valence electrons Large abundance of nucleophiles in the environment (water itself is a nucleophile) Nucleophilic
More informationCHEMISTRY 332 FALL 08 EXAM II October 22-23, 2008
First Three Letters of Last Name NAME Network ID CHEMISTRY 332 FALL 08 EXAM II October 22-23, 2008 The following materials are permissible during the exam: molecular model kits, course notes (printed,
More information2016 Pearson Education, Inc. Isolated and Conjugated Dienes
2016 Pearson Education, Inc. Isolated and Conjugated Dienes 2016 Pearson Education, Inc. Reactions of Isolated Dienes 2016 Pearson Education, Inc. The Mechanism Double Bonds can have Different Reactivities
More informationChapter 3: Acid-Base Chemistry
Chapter 3: Acid-Base Chemistry Reaction Classification: Substitution: 3 C Cl + Na 3 C + NaCl Addition: Br 2 Br Br Elimination: Br -Br Rearrangement: We ll deal with these later Bond Cleavage eterolytic
More information