Question

Which of the following alkane ( having molecular weight = 86) on bromination gives only two monobromo derivatives (excluding stereoisomers) ?

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

Only compounds (a) ,(b) and (c) have molecular weight 86
In (a) 5 different monobromo derivatives are possible, whereas in (b) 4 different monobromo derivatives are possible
In (c) :
Two monobromo derivatives formed are :

Monobromination at any other carbon will yield similar products.