Question

Assertion : is 3-carbethoxy- 2-butenoic acid.
Reason : Principal functional group gets lowest number followed by double bond or triple bond.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (A)

Here since $-COOH$ is the principal functional group, it gets the lowest number than the secondary functional group (3-carbethoxy). So it is .3-carbethoxy-2-butenoic acid.