Question

Question 12.4 Give the IUPAC names of the following compounds:

(a)


(b)


(c)


(d)


(e)


(f) Cl2CHCH2OH

Class XI Organic Chemistry : Some Basic Principles and Techniques Page 361

Answer 1

This question is based on Rules for writing IUPAC name .
The following most important rules are followed while giving IUPAC name to an organic compound :-
1. The principal chain in the organic compound is determined first which is the longest possible carbon chain in the molecule.

2. if two or more chains in a compound have same length, the chain having greatest number of branches is considered as the principal chain.

[remember : the longest chain must contain the principal functional group , secondary functional group and multiple bonds as many as possible ]

now, Use The all rules of IUPAC , and solve the questions with help of rules .
see attachment,

answer is (a) propylbenzene
(b) 3-methylpentanenitrile
(c) 2,5-dimethylheptane
(d) 3-bromo -3-chloroheptane
(e) 3-chloropropanal
(f)2,2-dichloroethanol

Answer 2

Answer:

i) Butane

ii) propane bromide

iii) penta2ene

iv) Hexanol