Class notes IIT

General Organic Chemistry
Choose the correct answers : CENTER for EDUCATION & TRAINING (C.E.T.)
1. The compound with an isopropyl group is O
OHC COOH
(a) 2, 2, 3, 3-tetramethylpentane
(b) 2, 2-dimethyl pentane H H
(c) 2, 2,3-trimethyl pentane (a) 2, 4-dioxocyclohexanoic acid
(d) 2-methyl pentane (b) 2, 4-dioxocycloheptanoic acid
(c) 4-formyl-2-oxocyclohexane-1-carboxylic acid
2. The IUPAC name of the compound
(d) None of these
CH2 = CH – CH(CH3)2 is
7. Assign IUPAC name for the following compound
(a) 1, 1-dimethyl-2-propene
CHO H Me
(b) 3-methyl-1-butene
(c) 2-vinyl propane Me
(d) 1-isopropylethylene (a) 3, 7-dimethylhept-2, 6-dien-1-al
3. The IUPAC name of the following compound is (b) 3, 7-dimethyloct-2, 6-dien-1-al
Me (c) 2, 6-dimethyloct-2, 6-dien-1-al
Me Me (d) 3, 7-dimethyloct-2, 6-dien-7-al
Me Me 8. The IUPAC name of the following compound is,

(a) 5, 6-diethyl-3-methyldec-4-ene Cl CH Cl
(b) 5, 6-diethyl-8-methyldec-6-ene CCl3

(c) 5, 6-dimethyl-8-methyldec-6-ene (a) 2,2-bis (p-chlorophenyl)-1,1,1-trichloroethane
(d) 5, 6-dimethyl-3-methyl-4-ene (b) dichlorophenyltrichloroethane
(c) 1,1,1-trichloro-2,2-bis (p-chlorophenyl) ethane
4. The IUPAC name of the compound following (d) 1,1-bis (p-chlorophenyl)-2,2,2-trichloroethane
compound is 9. IUPAC name of the following compound is
CH2 – CH – CH2
CH3CH2CH2CH2— | | |
CN CN CN
(a) Propane1,2,3 tricarbonitrile
(a) butyl cyclopropane
(b) 3-cyanomethyl butane-1-4-dinitrile
(b) 1-cyclopropyl butane
(c) 1,2,3-cyanopropane
(c) 2-cyclopropyl butane
(d) 1,2,3-propane trinitrile
(d) 3-cyclopropyl butane
10. Assign the IUPAC name
5. Assign the IUPAC name for the following compound CH3
H2C–COOH |
| CH3–C–CH2–CH3
HOC–COOH |
| CH 3 –CH 2 –CH 2 –CH 2 –C–CH 2 –CH 2 –CH 2 –CH 3
H2C–COOH |
(a) 2-hydroxypentan-1,5-dioic acid CH2–CH–CH3
|
(b) 2-carboxy-2-hydroxypentan-1,5-dioic acid CH3
(c) 3-hydroxypentane-1,2,3-trioic acid (a) 5-(2-methylpropyl)-5-(1,1-dimethylpropyl) nonane
(d) None of these (b) 5-(1-1-dimethylpropyl)-5-(2-methylpropyl) nonane
(c) 5,5-dibutyl-2,5,5-trimethylheptane
6. Write the IUPAC name of the following compound
(d) 5,5-dibutyl-3,3,6-trimethylheptane

[49]

, Nomenclature & General Organic Chemistry


11. Assign the IUPAC name to [(CH3)2CH]3COH (a) 3-methyl-1-isopropylcyclohexane
(a) 3-(1-methylethyl)-2,4-dimethylpentan-3-ol (b) 1-methyl-3-isopropylcyclohexane
(b) 2,4-dimethyl-3(1-methylethyl)pentan-3-ol (c) 1-isopropyl-3-methylcyclohexane
(c) tris-(1-methylpropyl)methanol (d) 1-isoprophy-5-methylcyclohexane
(d) 3-(2-methylethyl)-3(1-methylethyl)pentan-2-ol
Me
12. What is the name of the following compound ? 16. The IUPAC name of is
OH Me

CO – NH COOH (a) cis-1, 2-dimethyl cyclohexane
H SO3H (b) trans-1, 2-dimethyl cyclohexane
(c) 1, 2-dimethyl cyclohexane
(a) 2-carboxy-4-(cyclohexanecarboxamido)-3- (d) 1, 2-cyclo hexyl dimethane
hydroxy-benzene sulphonic acid
17. The IUPAC name of CHO–COOH is
(b) 3-(cyclohexanecarboxamido)-2-hydroxy-6-
(a) 2-Oxoethanoic acid
sulpobenzoic acid
(b) 1-Formyl methanoic acid
(c) 5-(cyclohexanecarboxamido)-6-hydroxy-2-
(c) Both (a) & (b)
sulphobenzoic acid
(d) None of these
(d) None of these
18. The IUPAC name of Anthranitllic acid is
13. The IUPAC name of the following compound
(a) 2-Carboxy aniline
(a) 2,3-dimethylpentane-2,3-diol HO
(b) 2-Amino benzoic acid
(b) 4-methylpentane-1,2-diol
(c) Both (a) & (b)
(c) 2-methylhexane-1,2-diol HO (d) None of these
(d) Isohexyl glycol
19. The IUPAC name of Alanine is
14. The IUPAC name of the following compound (a) 2-Amino propanoic acid
O
|| (b) 3-Amino propanoic acid
C (c) 2-Amino ethanoic acid
O
HOOC— C (d) None of these
||
O 20. The correct order of C – H bond dissociation energy is
COOH (i) CH3 – H (ii) CH3CH2 – H
(a) Cyclohexane-3,4,5,6-tetracarboxylic acid
CH2 – H CH – CH3
5,6-anhydride
(b) Cyclohexane-1,2,3,4-tetracarboxylic acid (iii) (iv) H
1,2-anhydride
(c) Cyclohexane-1,2,3,4-tetracarboxylic acid (a) (i) > (ii) > (iii) > (iv)(b) (iv) > (iii) > (ii) > (i)
3,4-anhydride (c) (iii) > (i) > (iv) > (ii)(d) (iv) > (iii) > (i) > (ii)
(d) Cyclohexane-2,3,4,5-tetracarboxylic acid
21. The correct order of acidic strength of Methoxy
2,3-anhydride
phenols is
15. The IUPAC name for the compound (a) m > phenol > o– > p–
CH3 (b) o– > phenol > m > p
CH3 (c) m – > o – > phenol > p–
is (d) m – > phenol > p– > o–
CH – CH3
[50]