Question

An organic compound A reacts with methylmagnesium iodide to form an addition product which on hydrolysis forms the compound B. Compound B gives blue colour salt in Victor Meyer's test. The compounds A and B are respectively 

(a) Acetaldehyde, tertiary butyl alcohol

(b) Acetaldehyde, ethyl alcohol

(c) Acetaldehyde, isopropyl alcohol

(d) Acetone, isopropyl alcohol

Answer 1

(c) Acetaldehyde, isopropyl alcohol

Compound B is a Sec. alcohol since it gives blue colour in Victor-Meyer test and Sec alcohol are obtained by the action of CH₃MgI on an aldehyde other than formaldehyde.

So A is Acetaldehyde and B is Isopropyl Alcohol.