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Conversion of propyne to acetone requires three important reagents. Identify which of the following is not one of the three?

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Conversion of propyne to acetone requires three important reagents. Identify which of the following is not one of the three?

(a) Water

(b) Zinc dust

(c) H2SO4

(d) HgSO4

I had been asked this question in an international level competition.

My question is taken from Preparation of Aldehydes and Ketones in division Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Right answer is (b) Zinc dust

To explain: Addition of water to propyne in the presence of H2SO4 and HgSO4 gives acetone. Zinc dust is an important reagent in the ozonolysis of alkenes.

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