Question

Which of the following is not correct for isomers?

• A. Same molecular formula
• B. Different molecular weight
• C. Different Properties
• D. None of these.

Answer 1

The correct option is B

Different molecular weight

Organic compounds having the same molecular formula but differing from each other at least in some physical or chemical properties or both are known as isomers and the phenomenon is known as isomerism.

So, isomers have:

• Same molecular formula
• Same molecular weight
• Different properties