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Question

A compound (X) reacts with thionyl chloride to give a compound (Y). (Y) reacts with Mg to form a Grignard reagent, which is treated with acetone and the product is hydrolysed to give 2-methyl-2- butanol. What are structural formulae of (X) and (Y) ?
  1. X = Acetic acid Y = Ethyl Chloride
  2. X = Acetaldehyde Y = Ethyl Chloride
  3. X = Ethyl Alcohol Y = Ethyl Chloride
  4. X = Propyl alcohol Y = Propyl Chloride

A
X = Acetaldehyde Y = Ethyl Chloride
B
X = Propyl alcohol Y = Propyl Chloride
C
X = Ethyl Alcohol Y = Ethyl Chloride
D
X = Acetic acid Y = Ethyl Chloride
Solution
Verified by Toppr

The reaction can be written as, shown in the above image.
Hence, X is Ethyl alcohol.
and Y is Ethyl chloride.
1175142_263247_ans_4cf34a857c5844bf8c70ef7b5b150b6a.PNG

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