Question

Number of dichloro derivatives are
possible for propane is X and
among them number of chiral
molecule is Y . Then X – Y is

Answer 1

possible dichloro derivatives for propane are:

1. 1, 2 di chloro propane

2. 1, 3 dichloro propane

3. 1,1 dicloro propane

4. 2,2 dichloro propane

So, number of dichloro derivates = X = 4

The chiral molecule is 1, 2 dichloro propane

so, no. of chiral molecules = Y = 1

So, X - Y = 4 - 1 = 3

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