Question

Find out the major product for the following reaction.

• A.
• B.
• C.
• D.

Answer 1

The Correct Option is C

The reaction involves the dehydration of a secondary alcohol to form an alkene. Under acidic conditions (\(\text{H}_2\text{O}^+\)), the \(-\text{OH}\) group is protonated and leaves as water, forming a carbocation intermediate. The major product is determined by the stability of the alkene. In this case, the more substituted alkene (Zaitsev's rule) is the major product. The reaction mechanism is as follows:
1. Protonation of the alcohol group.
2. Loss of water to form a carbocation.
3. Elimination of a proton to form the alkene.
Thus, the major product is the one with the double bond in the more substituted position.