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Hydrogenation of benzoyl chloride in the...

Hydrogenation of benzoyl chloride in the presence of Pd on `BaSO_4` gives

A

a.Benzyl alcohol

B

b.Benzaldehyde

C

c.Benzoic zcid

D

d.Phenol

Text Solution

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The correct Answer is:
To solve the problem of the hydrogenation of benzoyl chloride in the presence of palladium on barium sulfate (Pd/BaSO4), we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactant**: - The reactant is benzoyl chloride, which has the structure C6H5C(O)Cl. This compound contains a benzene ring (C6H5) attached to a carbonyl group (C=O) and a chlorine atom (Cl). 2. **Understand the Catalyst**: - The catalyst used is palladium on barium sulfate (Pd/BaSO4), which is known as Lindlar's catalyst. This catalyst is used for selective hydrogenation reactions. 3. **Reaction Mechanism**: - In the presence of hydrogen (H2) and the Lindlar catalyst, the benzoyl chloride undergoes hydrogenation. The chlorine atom (Cl) is replaced by a hydrogen atom (H). 4. **Formation of the Product**: - During the hydrogenation process, the carbonyl group (C=O) is reduced to an aldehyde (C=O becomes CHO). Thus, the product formed is benzaldehyde (C6H5CHO). 5. **Conclusion**: - Therefore, the hydrogenation of benzoyl chloride in the presence of Pd on BaSO4 yields benzaldehyde. ### Final Answer: The product of the hydrogenation of benzoyl chloride in the presence of palladium on BaSO4 is **benzaldehyde**.
To solve the problem of the hydrogenation of benzoyl chloride in the presence of palladium on barium sulfate (Pd/BaSO4), we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactant**: - The reactant is benzoyl chloride, which has the structure C6H5C(O)Cl. This compound contains a benzene ring (C6H5) attached to a carbonyl group (C=O) and a chlorine atom (Cl). 2. **Understand the Catalyst**: ...
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