When calcium ethanoate (calcium acetate, ) is subjected to dry distillation, which carbonyl compound is obtained?
Answer and explanation
Correct answer: B. Propan-2-one
- Step 1: Dry distillation of calcium salts of carboxylic acids involves thermal decomposition and expulsion of calcium carbonate ().
- Step 2: The reaction equation is: .
- Step 3: The volatile carbonyl product distilled off is propan-2-one (acetone).
Answer
Propan-2-one (acetone).
Why not the others: Ethanal requires dry distillation of an equimolar mixture of calcium acetate and calcium formate; Methanal requires dry distillation of pure calcium formate (); Ethanoic acid requires protonation with concentrated sulfuric acid.
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