Home
Class 12
CHEMISTRY
Benzoic acid is treated with lithium alu...

Benzoic acid is treated with lithium aluminium hydride. The compound obtained is

A

benzaldehyde

B

benzyl alcohol

C

toluene

D

benzene

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of what compound is obtained when benzoic acid is treated with lithium aluminium hydride (LiAlH4), we can follow these steps: ### Step 1: Identify the Reactants We start with benzoic acid, which has the molecular structure C6H5COOH. This compound is a carboxylic acid. **Hint:** Remember that benzoic acid contains a benzene ring attached to a carboxylic acid functional group. ### Step 2: Understand the Reducing Agent Lithium aluminium hydride (LiAlH4) is a strong reducing agent commonly used to reduce carboxylic acids to alcohols. **Hint:** Strong reducing agents like LiAlH4 can convert carboxylic acids into primary alcohols. ### Step 3: Determine the Reaction When benzoic acid is treated with LiAlH4, the carbonyl group (C=O) in the carboxylic acid is reduced. The reaction can be summarized as follows: C6H5COOH + LiAlH4 → C6H5CH2OH + by-products Here, the carboxylic acid (COOH) group is converted into a hydroxyl (OH) group, resulting in benzyl alcohol (C6H5CH2OH). **Hint:** Focus on how the functional groups change during the reduction process. ### Step 4: Identify the Product The product formed from the reduction of benzoic acid with LiAlH4 is benzyl alcohol. **Hint:** Recall that benzyl alcohol has a benzene ring attached to a -CH2OH group. ### Conclusion The compound obtained when benzoic acid is treated with lithium aluminium hydride is benzyl alcohol. **Final Answer:** Benzyl alcohol (C6H5CH2OH)
To solve the problem of what compound is obtained when benzoic acid is treated with lithium aluminium hydride (LiAlH4), we can follow these steps: ### Step 1: Identify the Reactants We start with benzoic acid, which has the molecular structure C6H5COOH. This compound is a carboxylic acid. **Hint:** Remember that benzoic acid contains a benzene ring attached to a carboxylic acid functional group. ### Step 2: Understand the Reducing Agent ...
Promotional Banner

Similar Questions

Explore conceptually related problems

The compound which does not react with lithium aluminium hydride is

What happens when a carboxylic acid is treated with lithium aluminum hydride ?

Which one of following on reduction with lithium aluminium hydride yields a secondary amine ? .

Benzoic acid not form in :

Give chemical equations and name the main product formed when (i) Ethyl alcohol is mixed with air and passed over Ag catalyst at 520 K. (ii) Benzoyl chloride is treated with lithium tri-tert-butoxy aluminium hydride. (iii) Isoprophlidene chloride is treated with caustic potash. (iv) Methylmagnesium iodide is treated with HCN and the resultant product is hydrolysed.

Lithium aluminium hydride reacts with silicon tetrachloride to form

Compound 'A' is prepared by oxidation of compound 'B' with alkaline KMnO_(4) . Compound 'A' on reduction with lithium aluminium hydride gets converted back to compound 'B'. When compound 'A' is heated with compound 'B' in the presence of H_(2)SO_(4) , it produces fruity smell of compound 'C'. To which family, the compounds 'A', 'B' and 'C' belong to ?