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Question
Write chemical equations of the following reaction :
Benzoyl chloride is hydrogenated in the presence of `"Pd"/(BaSO_4)`
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Solution
Benzoyl chloride is hydrogenated over catalyst 4 Pd-BaSO to give benzaldehyde. This reaction is called the Rosenmund Reaction.

RELATED QUESTIONS
A compound 'A' of molecular formula C2H3OCl undergoes a series of reactions as shown below. Write the structures of A, B, C and D in the following reactions :

How will you convert ethanal into the following compound?
But-2-enal
How will you bring about the following conversion in not more than two steps?
Ethanol to 3-Hydroxybutanal
Write chemical equations of the following reaction :
Propanone is treated with dilute Ba (OH)2-.
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(i) Benzaldehyde into benzyl alcohol
(ii) Cyclohexanone into cyclohexane
(iii) Benzoyl chloride into benzaldehyde
(iv) Benzophenone into diphenyl methane
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Presence of Alpha hydrogen in aldehydes and ketones is essential for aldol condensation.
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Ethanal to 3-hydroxy butanal
The major product of the following reaction is:


Identify A and B:
Write a note on the aldol condensation reaction of acetaldehyde.
