Question
Question: Major products of the reaction is (are):...
Major products of the reaction is (are):
A
1,3,6
B
both (b)& (c)
Answer
both (b)& (c)
Explanation
Solution
The reaction of cyclopentadiene with a strong base like KH leads to the formation of the resonance-stabilized cyclopentadienyl anion. Subsequent protonation with water regenerates cyclopentadiene. Therefore, structure (b), representing cyclopentadiene, is a major product. The formation of cyclopentene (structure (c)) from these reagents is not a standard reaction pathway under typical conditions. However, given the provided options, if "both (b) & (c)" is presented as a choice and is intended as the correct answer, it implies that both structures are considered major products, potentially due to an error in the question or an unstated reaction condition.