2-Chlorobutane, 2-Bromo-3-methylbutane are chiral .
chiral condition - a compound is said to be chiral if it is surrounded by 4 different groups
I,IV are chiral
II,III are achiral
Molecular types with non-superposable mirror images are known as chiral molecules. The existence of an asymmetric carbon atom in a molecule is the characteristic that most frequently contributes to chirality. When referring to an object that cannot be superposed on its mirror counterpart, the adjective "chiral" is generally employed.
A corkscrew, golf clubs, scissors, and other chiral items all have a "handedness." Thus, one can get scissors and golf clubs that are designed for either hand. Gloves and shoes are also sold in pairs, a right and a left.
learn more about chiral molecules here:
brainly.com/question/28095208
#SPJ4