Question

Choose the correct statement(s) regarding chain isomers :

• A. They have same molecular weight.
• B. They have same physical/chemical properties.
• C. They have same vapor density.
• D. They have same carbon skeleton (parent chain).

Answer 1

Answer: (A), (C)

They have same vapor density.

Chain isomerism:
Structural isomers which have different carbon skeletons (parent chain or side chain)
Chain isomerism is also known as skeletal isomerism.
Characteristics of chain isomerism :
1.Compounds with the same molecular formula.
2. Compounds with the same general formula.
3.Compounds with the same empirical formula.
4.Compounds with the same molecular weight.
5.Compounds with the same empirical weight.
6.Compounds with the same vapor density.
7.At least one difference in physical/chemical properties
8. Different structural formulae
9. Different carbon skeleton.