(B) The reaction of a Grignard reagent $(C_6H_5MgBr)$ with carbon dioxide $(CO_2)$ followed by acid hydrolysis $(H_3O^+)$ is a standard method for the

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(B) The reaction of a Grignard reagent $(C_6H_5MgBr)$ with carbon dioxide $(CO_2)$ followed by acid hydrolysis $(H_3O^+)$ is a standard method for the preparation of carboxylic acids. The reaction proceeds as follows: $C_6H_5MgBr + CO_2 \rightarrow C_6H_5COOMgBr$ $C_6H_5COOMgBr + H_3O^+ \rightarrow C_6H_5COOH + Mg(OH)Br$ Thus,the product $P$ is benzoic acid $(C_6H_5COOH)$.

Class 12 Chemistry 8-2.Carboxylic acids and Their derivative Preparation of Carboxylic Acids and Their Derivatives

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In the given reaction,the product $P$ is:

AIPMT 2002 All AIPMT

A
Benzaldehyde
B
Benzoic acid
C
Phenol
D
$C_6H_5-C(=O)-C_6H_5$

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Class 12

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8-2.Carboxylic acids and Their derivative

Subtopic

Preparation of Carboxylic Acids and Their Derivatives

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AIPMT 2002 Paper All AIPMT years →

Identify the product $C$ in the following reaction sequence:
$CH_3CN$ $\xrightarrow{Na/C_2H_5OH} A$ $\xrightarrow{HNO_2} B$ $\xrightarrow{Cr_2O_7^{2-}} C$

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When alkyl cyanides are hydrolysed to the corresponding carboxylic acids,the gas evolved is:

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The acid formed when propyl magnesium bromide is treated with carbon dioxide is:

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When $methyl \ cyanide$ is hydrolysed in the presence of an alkali,the final product is:

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In the above reaction,the reagent $A$ is :

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In the given reaction,the product $P$ is:

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Identify the product $C$ in the following reaction sequence:$CH_3CN$ $\xrightarrow{Na/C_2H_5OH} A$ $\xrightarrow{HNO_2} B$ $\xrightarrow{Cr_2O_7^{2-}} C$

When alkyl cyanides are hydrolysed to the corresponding carboxylic acids,the gas evolved is:

The acid formed when propyl magnesium bromide is treated with carbon dioxide is:

When $methyl \ cyanide$ is hydrolysed in the presence of an alkali,the final product is:

In the above reaction,the reagent $A$ is :

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Identify the product $C$ in the following reaction sequence:
$CH_3CN$ $\xrightarrow{Na/C_2H_5OH} A$ $\xrightarrow{HNO_2} B$ $\xrightarrow{Cr_2O_7^{2-}} C$