Q. An organic compound X with molecular formula , when treated with , forms a gem-dibromide. The compound X upon warming with and dil. , produces a ketone, which gives a positive iodoform test. The compound is

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Solution:

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(Hydrobromination, Markownikoff 's product, which is a gem-dibromide).
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Acid catalysed hydration of alkyne gives ketone. In the case of terminal alkyne, the product is a methyl ketone, which gives haloform test
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