mMCQ.

Navigation Menu

Step into mMCQ.

Launch mMCQ. diagnostic

Explore mMCQ.

MDCAT prepFree DiagnosticPricing & SubscribeSign in

Resources

Terms & Conditions

mMCQ.

© 2021 - 2025 mMCQ.All rights reserved.

WhatsApp
  1. Home
  2. MDCAT
  3. Chemistry
  4. Alkyl Halides and Amines
MDCAT
Chemistry
2023

Chemistry · Alkyl Halides and Amines

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

Compound X reacts with Grignard's reagent to produce tertiary alcohols. What is the compound?

Options
  • A

    Aldehyde

  • B

    Ketone

  • C

    Acid halide

  • D

    Carboxylic acid

Explanation

Grignard's reagent (RMgX) reacts with ketones to produce tertiary alcohols. The reaction involves the nucleophilic addition of the Grignard reagent to the carbonyl group of the ketone, followed by hydrolysis to form a tertiary alcohol.


The reaction is:


R2C=O (ketone) + RMgX (Grignard reagent) → R2C(OH)R' (tertiary alcohol)

Grignard's reagent reacts with aldehydes to produce secondary alcohols, not tertiary alcohols.

Grignard's reagent (RMgX) reacts with ketones to produce tertiary alcohols. The reaction involves the nucleophilic addition of the Grignard reagent to the carbonyl group of the ketone, followed by hydrolysis to form a tertiary alcohol.


The reaction is:


R2C=O (ketone) + RMgX (Grignard reagent) → R2C(OH)R' (tertiary alcohol)

Grignard's reagent reacts with acid halides to produce tertiary alcohols, but the product is not specific to acid halides.

Grignard's reagent does not react with carboxylic acids to produce tertiary alcohols.

Keep practising Chemistry

Take the free 2 minutes diagnostic to map weak topics, then unlock full Biology, Chemistry, Physics, English, and Logical Reasoning practice for PKR 15,000/month.

Start free diagnosticExplore MDCAT

Tagged under Chemistry · Alkyl Halides and Amines · 2023