Test Date: 30th September, 2018 (Sunday) Venue: Lajpat Rai Bhawan, Sector 15-B, Chandigarh
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1 Test Date: 0th September, 2018 (Sunday) Venue: Lajpat Rai Bhawan, Sector 15-B, handigarh Syllabus Physics hemistry Biology 1. Electrostatics 2. apacitors. urrent Electricity 4. Magnetic effects 5. Magnetism & Matter 6. EMI 7. Alternative urrent 1. Isomerism 2. rganic alide. Grignard Reagent 4. Alcohol Phenol & Ether 5. Aldehyde & Ketone 1. Principles of Inheritance 2. Molecular Basis of Inheritance. Evolution 4. uman ealth & Diseases 5. Biotechnology (omplete) Dr. Sangeeta khanna, Ph.D KP Singh arpal Singh (hemistry oaching ircle) (KP Institute of Physics) (arpal s Biology asses) for those in pursuit of Excellence
2 PB TEST 1 ( ) READ INSTRUTINS AREFULLY 1. The test is of hour duration. 2. The maximum marks are This test consists of 180 questions. (Negative Marking) 4. Use of white fluid for correction is NT permissible on the Answer Sheet. 5. For each question you will be awarded 4 marks if you have darkened only the bubble corresponding to the correct answer and zero mark if no bubbles are darkened. Minus one (-1) mark will be awarded for wrong answer equiv. A / 2 B A and B are,, no reaction, none is correct 2. Rank the following alkenes in order of decreasing heats of hydrogenation (largest first) > > 4 > 1 1 > > 4 > 2 1 > 4 > > 2 2 > 4 > > 1. An alcohol (A) on dehydration gives (B), which on zonolysis gives acetone and formaldehyde. (B) decolourises alkaline KMn 4 solution but (A) does not. (A) and (B) are respectively: and 2 = and ( ) and ( ) 2 = 2 2 and ( ) zonolysis product of an olefin are & 2 2, the olefin is : 5. hoose the non aromatic compound among the following: N oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics) 2
3 6. 2/Fe X Na Y ; The product Y is 7. Identify the X, Y, Z in the following reaction Na at mild temperature X 2 5 Y Na high temp. Z X Y Z no reaction no reaction no reaction no reaction no reaction no reaction 8. When one mole of the given compound reacts with sodium metal then how many moles of 2 gas will release? N 2 (1 mole) 1 mole 1.5 mole 2 mole 0.5 mole oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics)
4 9. Mark the correct order of decreasing acid strength of the following compounds. N 2 N 2 (I) (II) (III) (IV) (V) V > IV > II > I > III II > IV > III > I > V IV > V > III > II > I V > IV > III > II > I 10. The number of aldol reaction that occurs in the given transformation, i.e. : aq. Na KI in acetone undergoes S N 2 reaction with each P, Q, R and S. P Q R S The rates of reaction vary as: P > Q > R > S S > P > R > Q P > R > Q > S R > P > S > Q 12. In the given transformation, which of the following is the most appropriate reagent? = Reagent = 2 N 2N 2, Zn g/ Na, Liq, N NaB 4 1. The major product of the following reaction is (i) K N (ii) 2 N 2 N 2 oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics) 4
5 N A hydrocarbon X has molecular formula 5 10 (X) on treatment with B 2 6 in 2 2 /Na gives an optically active 5 12 which on treatment with r //pyridine gives (y) which is still chiral. ompound y is N Among the following compounds, one that will not show keto-enol tautomerism is : 16. The order of activity of the various o- and p- director is > > > > > > > > > > > > 17. R-alanine is represented by: N 2 N 2 N 2 N The major product of the following reaction is: 2 2S 4 (conc.) = Among the following compounds which can be dehydrated very easily? oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics) 5
6 20. Among the following the most reactive towards alcoholic K is 2 = The compound which undergo fastest reaction with aq. Na solution is: = products The major product is Mg / ether ( ) A 6 5 B 2 The product B in the above reaction is 2. 2-Phenyl--methyl butan-2-ol -phenyl butan-2-ol 2-phenylpentan-2-ol propan-2-ol and ethyl benzene 24. onsider the following nucleophiles F Θ Θ Θ Θ S, Ph S, Ph -, IV I II III when attached to sp hybridized carbon, their leaving group ability in nucleophilic substitution reactions decreases in the order: I > II > III > IV I > II > IV > III IV > I > II > III IV > III > II > I 25. Rate of reaction with aqueous ethanol follows the order: 2 (P) (Q) (R) (S) P > Q > S > R Q > P > R > S P > R > Q > S R > P > S > Q oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics) 6
7 26. Which of the following compound will have intramolecular cannizzaro reaction 27. The structure of the major product formed in the following reaction is I NaN DMF N N N I N N I I NaN 2 2 N Which of the following solvent can be used in this reaction exane 2 alcohol N/ \ 29. Which of the following is formed when salicyclic acid react with 2 -water. 2,4,6-Tribromo salicyclic acid 2,4-Dibromo salicyclic acid 2,4,6-Tribromophenol 4-omo salicyclic acid 0. + P; Product P is 1-Methoxy propan-2-ol 2-Methoxy propan-2-ol -Methoxy propane-2-ol No reaction 1. Which is correct order of reactivity in nucleophilic addition reaction in carbonyl a. > > > > > > N 2 N 2 oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics) 7
8 > > > > > > N 2 N 2 2. Which among the following compound will have meso form : () X on treatment with sodium hydroxide followed by the addition of silver nitrate give white precipitate at room temperature which are soluble in N 4. X can be hlorobenzene Ethyl bromide Benzyl chloride Vinyl chloride (I) Mg/ether 4. Propene A B (ii) 2/Boil In the above sequence of reactions B is Propane Butane Propene Ethane 5. (i) Li Product (ii) D 2 What is the product in the above reaction? D D 6. Which of the following cannot be used to distinguish acetone & ethanal? Tollen s Reagent Fehling solution aloform Reaction Schiff s Reagent 7. Which of the following reducing agent will be suitable for following conversion Ni + 2 LiAl 4 Pd + BaS 4 (quinoline) Zn + N NaI NaB 4, 2 oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics) 8
9 2-ydroxycyclohexanecarboxylicacid 2-ydroxymethylcyclohexanol 2-xocyclohexane carboxylic acid 2-Ethylcyclohexanone 9. Which of the following statements are correct: (1) Any chiral compound with a single asymmetric carbon must have a positive optical rotation if the compound has the R configuration. (2) If an open chain structure has no plane of symmetry it is chiral () 7 N cannot be resolved (4) Alcohol and ether are functional isomers. Select the correct answer from the codes given below: odes: only 1 is correct 2, & 4 are correct 40. In the conversion of 2 & are correct 1, 2, & 4 are correct 2 = 2 X = 2 X is : 2 /Pt Zn g/ Li/N NaB In the following sequence of reactions: the end product () is: KN LiAl 4 A B ether Acetaldehyde Ethyl alcohol Acetone Methane 42. Which of the following compounds will undergoes racemisation when solution of K hydrolysies? (i) (ii) 2 2 (iii) 2 (iv) D 2 5 (i) and (iv) (i) and (ii) (ii) and (iv) (iii) and (iv) 4. Which of the following is correct for the reactions? = (X) + 2 A + B A and B form a racemic mixture and D form a racemic mixture A, B, and D all are the same compound A and B are the same compounds while and D are different compounds oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics) 9 = (Y) D
10 / 2 / Fe In the following reaction: 7 8 A B the compound B is: 45. What are the major products X and Y in the following reaction? onc. 2S 4/ X 2 onc. 2S 4/ Y X is ; Y is 2 = 2 X is ; Y is X is ; Y is 2 = 2 X is ; Y is oordinated by: Dr. Sangeeta Khanna (hemistry), arpal Singh (Biology), KP Singh (Physics) 10
Test Date: (Sunday) Test Time: 1:00 pm to 2:00 pm Test Venue: Lajpat Bhawan, Madhya Marg, Sector 15-B, Chandigarh
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