Question

identify chiral molecule among the following.. a isopropyl alcohol. b isobutyl alcohol c. 1 bromo 3 butene d. 2 pentanol​

Answer 1

Answer:

Option b is the correct answer.

Explanation:

Isobutyl alcohol is a chiral molecule.

Isobutyl alcohol is also called as 2-Butanol.

A chiral molecule has non-superimposable mirror images.

In a chiral molecule, the carbon atom is attached to four different groups, thus, making it a chiral carbon.

Here, in isobutyl alcohol or 2-Butanol

CH3-CH(OH)-CH2-CH3

As we can see, carbon atom 2 is attached to a methyl group (CH3) on its left, a hydrogen atom (-H) at position 2 itself, a hydroxyl group (-OH) again at the position 2 and an ethyl group (-CH2-CH3) on its right.

These 4 different groups attached to carbon atom 2 makes the second carbon, a chiral carbon atom.

The mirror images of this molecule will be non-superimposable.

Therefore, isobutyl alcohol is a chiral molecule.

Answer 2

The correct option is "d"

$\begin{array}{c}\star \rightarrow \text { Chirol } \\\mathrm{CH}_{3}-\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{3}\end{array}$

            |

           OH

The answer is 2 pentanol