Question

the number of isomers of pentane of.....
a) . 2
b) . 3
c) .4
d) .5​

Answer 1

Answer:

b) . 3

The term may refer to any of three structural isomers, or to a mixture of them: in the IUPAC nomenclature, however, pentane means exclusively the n-pentane isomer; the other two are called isopentane (methylbutane) and neopentane (dimethylpropane).

Answer 2

Answer:

Three

Pentane has three structural isomers that are n-pentane, Iso-pentane (methyl butane) and neopentane (dimethylpropane).