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CBSE Class 12 · 2019 · Aldehydes Ketones and Carboxylic AcidsShort Answer

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Write chemical equations for the following reactions:
(i) propanone is treated with dilute Ba(OH)₂
(ii) acetophenone is treated with Zn(Hg)/conc. HCl
(iii) benzoyl chloride is hydrogenated in the presence of Pd/BaSO₄

Answer: (i) Aldol: 2CH₃COCH₃ → 4-hydroxy-4-methylpentan-2-one. (ii) Clemmensen → ethylbenzene. (iii) Rosenmund → benzaldehyde.

Solution

(i)

(4-hydroxy-4-methylpentan-2-one — diacetone alcohol).
(ii)

(iii)

CBSE Class 12 Board · 2019 · Subjective

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