Question Bank No: 1

1. Which of the following compound has wrong IUPAC name?

 a)CH3CH2−CH2COO−CH2CH3(Ethyl butanoate)
 b)CH3−CHCH3|−CH2−CHO (3-Methylbutanal)
 c)CH3−CHOH|−CCH3||−CH3 (2-Methyl-3-butanal)
 d)CH3−CHCH3|−CO||−CH2−CH3 (2-Methyl-3-pentanone)

2. The IUPAC name of CH3−CC2H5|−CHCH3 is

 a)2-Ethylbut-3-ene
 b)3-Methylpent-2-ene
 c)3-Methylpent-3-ene
 d)3-Ethylbut-2-ene

3. The IUPAC name for the formula CH3−CCH3| =CCH|−COOHis

 a)2-Methylbut-2-enoic acid
 b)3-Methylbut-3-enoic acid
 c)3-Methylbut-2-enoic acid
 d)2-Methylbut-3-enoic acid

4. The IUPAC name of (CH3)2CH−CH2−CH2Br is

 a)1-Bromopentane
 b)2-Methyl-4-bromobutane
 c)1-Bromo-3-methylbutane
 d)2-Methyl-3-bromopropane

5. The IUPAC name of CH3−CCH3|OH|−CH2−CHCH3|−CH3 is

 a)2,4-Dimethylpentan-2-0l
 b)2,4-Dimethylpentan-4-0l
 c)2,2-Dimethylbutan-2-0l
 d)Butanol-2

6. CH3−C∥O=C|OH−CHOis

 a)5-Oxo-4-hydroxy-2-pentanone
 b)4-Hydroxy-5-al-2-pentanone
 c)2-Hydroxy-4-oxopentanal
 d)1-Al-4-oxo-2-pentanol

7. The IUPAC name for the formula CH3−C|CH3=C|H−COOH is

 a)2-Methylbut-2-enoic acid
 b)3-Methylbut-3-enoic acid
 c)3-Methylbut-2-enoic acid
 d)2-Methylbut-3-enoic acid

8. Indicate the wrongly named compound

 a)CH3CHCH2CH2CHO(4−Methyl−1−pentanal)CH3|
 b)CH3−CH−C≡C−COOH(4−Methyl−2−pentyn−1−oicacid)CH3|
 c)CH3CH2CH2−CH−COOH(4−Methyl−1−pentanoicacid)CH3|
 d)CH3CH2−CH=CH−C∥O−CH3(3−Hexen−5−one)

9. The IUPAC name of (CH3)2CHCH3 is

 a)dimethylethane
 b)trimethylmethane
 c)isopropylmethane
 d)2-methylpropane

10. The IUPAC name of (CH3)2C−CH=CH2 is

 a)2,2- dimethyl-2-butene
 b)2,2- dimethyl-3-pentene
 c)3,3 - dimethyl-1-butene
 d)1-hexene