Identify relationship between following pairs :

If they are enantiomer answer will be 1, if they are diastereomers answer will be 2, if they are constitutional isomers answer will be 3 and if they are identical present 4 as the answer. Sum of answer of each part a + b + c + d is :......

Answer

a+b+c+d = 13

Explanation

(a) Enantiomers `implies 1`
(b) identical `implies 4`
(c) identical `implies 4`
(d) identical `implies 4`
`therefore 1 + 4 + 4 + 4 = 13`