Question

Which of the following products is formed when benzaldehyde is treated with CH₃MgBr and the addition product so obtained is subjected to acid hydrolysis ?
(a) A secondary alcohol
(b) A primary alcohol
(c) Phenol
(d) tert-Butyl alcohol

Answer 1

Reaction of benzaldehyde with CH3MgBr gives C6H5C(CH3)OMgBr which on hydrolysis gives C6H5C(CH3)OH which is secondary alcohol

Answer 2

Answer:

When benzaldehyde is treated with CH₃MgBr and the addition product so obtained is subjected to acid hydrolysis , a secondary alcohol is formed.

Explanation:

C₆H₅CHO → C₆H₅CH(OH)CH₃

Here C₆H₅CHO reffers to Bonzaldehyde and  C₆H₅CH(OH)CH₃is a 2°Alcohol

Required extra product for this experiment is CH₃MgBr,Water and Hydrogen ion.

Result of this experiment is two degree or Secondary Alcohol.