Question

Molecules whose mirror image is non-superimposable over them are known as chiral. Which of the following molecules is chiral in nature?

• A. $2$-Bromobutane
  
• B. $2$-Bromopropan-$2$-ol
• C. $1$- Bromobutane
  
• D. $2$-Bromopropane
  

Answer 1

The correct option is A $2$-Bromobutane


$\text{Analysing the options}:$

Chiral/asymmetric carbon is the carbon which has formed four bonds with four different groups. Enantiomers are stereoisomers that are non-superimposable mirror images of each other.

Option (A)

$2-bromobutane$ contain a chiral center at second carbon.



Mirror image of $2$-Bromobutane, both structures are non-superimposable.
Option (B)

In $1$-Bromobutane no chiral center is present, so it does not form non-superimposable mirror images.

Option (C)

In $2$-Bromopropane no chiral center is present, so it does not form non-superimposable mirror images.


Option (D)

In $2$-Bromopropan-$2$-ol no chiral center is present, so it does not form non-superimposable mirror images.

Therefore, correct option is $\left(A\right)$.