Question:
Which of the following is used as solvent for Grignard reagent?
Which of the following is used as solvent for Grignard reagent?
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Grignard reagents are made in dry ether, never in protic solvents.
Updated On: Oct 1, 2026
- Alcohol
- Ether
- Phenol
- Ketone
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Grignard reagents (RMgX) are strongly basic and react with anything having an acidic hydrogen or a carbonyl group.
Step 2: Detailed Explanation
Dry diethyl ether is used. Its oxygen lone pairs coordinate with magnesium and stabilise the reagent, and it has no acidic H.
Alcohol and phenol have O-H hydrogens that destroy the reagent (giving alkane). A ketone has a carbonyl group that reacts with the reagent. So only ether is suitable.
Final Answer:
Dry ether is the solvent, option (B). \[ \boxed{\text{Ether}} \]
Grignard reagents (RMgX) are strongly basic and react with anything having an acidic hydrogen or a carbonyl group.
Step 2: Detailed Explanation
Dry diethyl ether is used. Its oxygen lone pairs coordinate with magnesium and stabilise the reagent, and it has no acidic H.
Alcohol and phenol have O-H hydrogens that destroy the reagent (giving alkane). A ketone has a carbonyl group that reacts with the reagent. So only ether is suitable.
Final Answer:
Dry ether is the solvent, option (B). \[ \boxed{\text{Ether}} \]
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