question_answer

The major product obtained in the following reaction is :-                               JEE Main Solved Paper-2017

A)  \[(\pm )\,{{C}_{6}}{{H}_{5}}CH({{O}^{t}}Bu)C{{H}_{2}}C{{H}_{6}}{{H}_{5}}\]

B)  \[{{C}_{6}}{{H}_{5}}CH=CH{{C}_{6}}{{H}_{5}}\]

C)  \[(+){{C}_{6}}{{H}_{5}}CH({{O}^{t}}Bu)C{{H}_{2}}{{H}_{5}}\]

D)  \[(-){{C}_{6}}{{H}_{5}}CH({{O}^{t}}Bu)C{{H}_{2}}{{C}_{6}}{{H}_{5}}\]

Correct Answer: B

Solution :

 Elimination reaction is highly favoured if [a] Bulkier base is used [b] Higher temperature is used Hence in given reaction biomolecular   ellimination reaction provides major product.