Select the correct statement regarding the above shown reaction.
(I) and (II) give positive tests with Tollen's reagent.
(I) and (II) give positive tests with Fehling's solution.
(I) and (II) both react with Lucas reagent.
(I) and (II) both liberate H2 gas with sodium metal.
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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.