Question

Pick out the alkane which differs from the other members of the group :
(a) 2,2-dimethylpropane
(b) pentane
(c) 3-methylbutane
(d) 2,2-dimethylbutane​

Answer 1

Answer:

2,2-dimethyl propane : C

5

H

10

Pentane : C

5

H

10

2-methyl butane: C

5

H

10

2,2-dimethyl butane : C

6

H

12

Options A, B and C are isomers.

Hence, option D differ from other members of the group.