Q.8. Isomers are the compounds that must have same

Transcription

1 Choose the single correct answer for each of the following questions: (1 Mark each). Q. 1. ow many lone pairs are present in C 3 --C 3 i) 3 ii) 2 iii) 1 iv) 4 Q.2. When any hydrocarbon is added to water, it is: i) Soluble ii) Insoluble iii) Partially soluble iv) None of these Q.3. Which of the following is true for element Carbon: i) Monovalent ii) Divalent iii) Trivalent iv) Tetravalent

2 Q.4. General formula of Alknaes is: i) Cn2n-2 ii) Cn2n+2 iii) Cn2n iv) Cn2n+1 Q.5. General formula of Alkenes is: i) Cn2n-2 ii) Cn2n+2 iii) Cn2n iv) Cn2n+1 Q.6. General formula of Alkynes is: i) Cn2n-2 ii) Cn2n+2 iii) Cn2n iv) Cn2n+1 Q.7. ow many constitutional isomers does molecular formula C512 have: i) 3 ii) 2 iii) 4 iv) 0 Q.8. Isomers are the compounds that must have same

3 i)structural formula ii)molecular formula iii) Physical properties iv) Chemical Properties Q.9. The isomer of butane is i) 1-methyl propane ii) 2-methyl propane iii) 2-methyl butane iv) Cyclobutane Q.10. ow many hydrogen atoms are present in a cycloalkane with five carbon atoms i) 6 ii) 8 iii) 10 iv) 12 Q.11.

4 Q.12. Alkane Q.1.

5 Q.2. Q.3. Q.4.

6 Q.5. Q.6. Q.7.

7 Q.1. Which of the following molecule shows cis-trans isomerism: i) 2-butene ii) 1-butene iii) I-pentene iv) 2-methyl butane Q.2. The molecular formula C65C3 belongs to the following group: i) Aliphatic hydrocarbons ii) Saturated hydrocarbons iii) alkyne iv) aromatic hydrocarbons Q.3. Give the correct IUPAC name of C2=CC2C2C(C3)C2C(C3)3 i) 5,7,7-trimethyl 1-octene ii) 2,2,4-trimethyl 7-octene iii) 7,7 dimethyl, 1-nonene iv) 5,7,7,7 tetra methyl, 1-heptene Q.4. The product obtained by hydration of ethene is:

8 i) Acetaldehyde ii) Acetic Acid iii) Methanol iv) Ethanol Q.5. The product obtained by hydration of propene is: i) 1-propanol ii) 2-propanol iii) 1-butene iv) 2-butene Q.6. Phenol is: i) An alcohol ii) An aldehyde iii) An aliphatic compound iv) An aromatic compound

9 Q.7. Q.8. Q.9.

10 Q.10.

11 Q.1. Stereoisomers have: i) Same molecular formula but different structural formula ii) Same molecular and same structural formula iii) Different molecular formula but same structural formula iv) Same molecular formula and same properties Q.2. Chemical name of polymer Teflon is: i) Polyethylene ii) Polyvinyl Chloride iii) Polytetrafluoroethylene iv) Polypropylene Q.3. Common name of hydroxybenzene is: i) Aniline ii) Phenol

12 iii) Toluene iv) Benzene Q.4. What is the IUPAC name of m-diethylbenzene i) 1,2-diethylbenzene ii) 1,4-diethylbenzene iii) 1,3-diethylbenzene iv) 2,4-diethylbenzene Q.5. Solubility of ethanol in water is due to: a) ydrogen bonds c) Ionic bonds b) Covalent bonds d) Van der Waal forces Q.6. Dehydration of an alcohol leads to the formation of an. a) Alkene b) Alkane c) Alkyne d) Aldehyde Q.7. Aldehydes on oxidation produce: a) Alcohols c) Carboxylic acids b) Ketones d) Alkanes Q.8. Which of the following compounds has the highest boiling point? a) C 3 C 2 C 2 C 3 c) C 3 C 2 C 3 b) C 3 C 2 C=C 2 d) C 3 C 2 C 2 Q.9. Which of the following names represents this structure? a) 4-methyl-3-ethyl-1-cyclohexanone c) 3-ethyl-4-methyl-1-cyclohexanone b) 3-ethyl-4-methylcyclohexanone d) 4-methyl-3-ethylcyclohexanone Q.10. Select the IUPAC name for: (C 3 ) 2 CC()C 2 C(C 3 ) 3. a) 2,5,5-trimethyl-3-hexanol c) 1,1,4,4-pentamethylbutanol b) 1,1-dimethylisopentanol d) 2,5-dimethyl-4-hexanol

13 Q.1. Which of the following is the correct IUPAC name of the structure shown? a) 4-methylhexanal c) 3-proylpropanal b) methylhexanal d) 3-methylhexanal Q.2. What is the common name of C 3 C 2 C 2 C 2 C 2 C 3? a) Diethylether c) Dibutylether b) Butylethylether d) Ethylbutylether Q.3. What is the IUPAC name of the compound shown? a) 3-ethyl-2-heptanone c) 5-ethyl-2-heptanone b) 3-butyl-2-pentanone d) 3-ethyl-2-hexanone Q.4. Which of the following names represents this structure? a) 1-Ethyl-4-methyl-2-pentanone c) 1-Methyl-4-ethyl-3-pentanone b) 2-Ethyl-4-methyl-cyclopentanone d) 1-Methyl-3-thyl-4-pentanone Q.5. The isomers below are: a) Identical c) Cis-trans isomers b)constitutional isomers d) Enantiomers Q.6. Which of the following has lower boiling point? C

14 Q.7. xidation of secondary alcohol gives : a) Aldehyde b) Ketone c) Acid d) No reaction Q.8. A molecule containing an atom which carries four different atoms or groups attached to it is known as a) Chiral molecule c) Achiral molecue b) Symmetric molecule d) None of these Q.9. Which class of alcohol is isopropyl alcohol: a) Primary c) Secondary b) Tertiary d) Quaternary Q.10. Which one of the following is a tertiary alcohol? a) C 3 C 2 c) C 3 b) C 3 C()C 3 d) (C 3 ) 3C

15 Q.1. The number of chirality centers of the structure given below is: a) 2 b) 3 c) 4 d) 5 Q.2. Which of the following structures is a 3 amide? a C 3 C 2 N(C 3 ) 2 C 3 C 2 CNC 3 C 3 C 2 CN(C 3 ) 2 C 3 C 2 NC 3 a) b) c) d) Q.3. Which of the following structures represents triethylammonium iodide? c (C 3 C 2 ) 2 N 2 I C 3 C 2 N 3 I (C 3 C 2 ) 3 N I (C 3 C 2 ) 4 N I a) b) c) d) Q.4. Choose the correct IUPAC name of this compound C 3 C 3 C 3 CCCC 2 C Cl acid a) 2,4-dimethyl-3-chlorohexanoic acid c) 3-chloro-2,4-dimethylhexanoic acid b) 4-chloro-3,5-dimethylhexanoic acid d) 3,5-dimethyl-4-chlorohexanoic Q.5. What is the common name of the following compound?

16 N C 2C 3 C 3 a) N-ethyl,N-methyl toluene c) ethylmethylaminobenzene b) N-ethyl,N-methyl aniline d) ethylmethyl aniline Q.6. Which of the following structures represents N,N-dimethylacetamide? b C 3 C N(C 3 ) 2 C N(C 3 ) 2 3 C C NC 3 C NC 3 a) b) c) d) Q.7. Which of the following has the higher boiling point? a) C 3 C 2 C c) C 3 CC 3 b) C 3 C 2 C 2 C 3 d) C 3 C 2 C 2 C 2 Q.8. What products are formed when (C 3 C 2 ) 2 N is treated with Cl? + a) (C 3 C 2 ) 2 N 3 c) (C 3 C 2 ) 2 N + 2 Cl - b) (C 3 C 2 ) N 2 d) (C 3 C 2 ) 3 N Q.9. The reaction of C 3 C 2 C 2 and C 2 5 / 2 S 4 gives a) C 3 C 2 C c) C 3 C 2 CC 2 5 b) C 3 C 2 CCC 2 C 3 d) C 3 C 2 CNC 2 5 Q.10. Which of the following compounds is more soluble in water? a) C 3 (C 2 ) 4 C c) C 3 (C 2 ) 6 CNa b) C 3 (C 2 ) 5 C d) C 3 (C 2 ) 6 C Q.11. What is the classification of the following amine? N C 3 a) Primary amine c) secondary amine b) Tertiary amine d) quaternary amine Q.12. What are the hydrolysis products of the following ester using 2 / 2 S 4?

17 C 6 5 C 2 CC 2 C S 4 a) C 6 5 C 2 C + C 2 5 c) C 6 5 C 2 CC 2 C b) C 6 5 C + C 2 5 d) C 6 5 C 2 CC 3 + C 3 Q.13. What products are formed when the following ester is hydrolyzed with water and Na? C 3 C 2 C 2 CC Na a) C 3 (C 2 ) 2 CC c) C 3 C 2 C 2 CNa + C 2 5 b) (C 3 ) 2 CC + C 2 5 d) C 3 C 2 CC 3 + C 2 5 Q.14. Which of the following has the higher boiling point? a) C 3 C 2 C 2 CN 2 c) C 3 CN(C 3 ) 2 b) C 3 C 2 CNC 3 d) C 3 C 2 C 2 C 3 Q.15. What are the products of the following reaction? c C 3 CNC 2 C 2 C Cl a) C 3 C + 2 NC 2 C 2 C 3 c) C 3 C + C 3 C 2 C 2 N 3 Cl b) C 3 CN 2 + C 2 C 2 C 2 d) C 3 CNC 3 + C 3 C 2 Q.16. What are the products of the hydrolysis of the following amide? C N(C 3 ) Na a) C 6 5 C + (C 3 ) 2 N c) C 6 5 CNa + (C 3 ) 2 N + 2 b) C 6 5 C + C 3 N 2 d) C 6 5 CN(C 3 ) Na

18 Q.1. Which of the following represents α-isomer of cyclic form of the sugar shown?c C 2 C C C C C C 2 C 2 C 2 C 2 a) b) c) d) Q.2. Which of the following monosaccharides represents L-ketopentose? b C C 2 C C 2 C 2 C 2 C 2 C 2 a) b) c) d) Q.3. Which of the following cyclic structures represents β-d-fructose? c

19 C 2 C 2 C 2 C 2 C 2 C 2 C 2 C 2 a) b) c) d) Q.4. What is the product formed when D-glucose is treated with Cu +2 /? b C C C C C 2 C 2 C 2 C 2 a) b) c) d) Q.5. What is the product formed when a D-aldopentose is treated with 2 / Pd? c C C C 2 C 3 C 2 C 2 C 2 C 2 a) b) c) d) Q.6. Starch consists mainly from? a) Amylose and amylopectine c) amylose and glycogen b) Glucose and glycogen d) glucose and galactose Q.7. The structure below is corresponding to a disaccharide in the form of :

20 a) α - glycoside b) β - glycoside c) δ- glycoside d) non of the above Q.8. The hydrolysis of maltose gives two units of : a) α-d-galactose b) β-d-glucose c) α-d-glucose d) β-d-galactose Q.9. All carbohydrates contain one or more chirality centers except: a) Dihydroxy acetone c) glycerladehyde b) Glucose d) fructose

21 Q.1. The amino acid given below can be classified as : 3 N C C C 2 C 2 CN 2 a) Neutral b) Basic c) Acidic d) Zwitterion Q.2. The p at which the amino acid exist primarily in its neutral form is called: a) ydrogen bond c) isoelectric point b) Melting point d) boiling point Q.3. The net charge of the zwitterion of an amino acid is : a) -1 b) -2 c) zero d) +1 Q.4. Which of the following structures represents glycine in a solution of p = 2? b

22 3 N C C 3 N C C 2 N C C 2 N C C a) b) c) d) Q.5. The C-terminal of the following peptide chain is? Arg-is-Ala-Asp a) Arginine c) histidine b) Aspartic acid d) alanine Q.6. Three amino acids joined together by two peptide bond, called a) Tripeptide c) dipeptide b) Polypeptide d) tetrapeptide Q.7. Which form is predominates at p (11) for neutral amino acid? a) Zwitterion c) anionic form (-1) b) Cationic form(+1) d) all of them Q.8. What is the name of a tripeptide has N-terminal amino acid of tyrosine, leucine and C-terminal amino acid alanine? a) leucyltyrosylalanine c) alanylleucyltyrosine b) leucylalanyltyrosine d) tyrosylalanylleucine Q.9. All amino acids have a chirality center except: a) Alanine c) histidine b) Glycine d) aspartic acid Q.10.

23 Q.11. Q.12.