Question

Select the correct statement regarding the above shown reaction.
                                                                       

A

and (II) give positive tests with Tollen's reagent.

B

and (II) give positive tests with Fehling's solution.

C

and (II) both react with Lucas reagent.

D

and both liberate gas with sodium metal.

Hard
Solution
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Correct option is A)

In acidic medium, compound (I) mesmerizes to compound (II). Compound (I) contains a terminal alkyne group and compound (II) contains an aldehyde group. Hence, they give positive test with Tollen's reagent.

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