(I) and (II) give positive tests with Tollen's reagent.
(I) and (II) both liberate H2 gas with sodium metal.
(I) and (II) give positive tests with Fehling's solution.
A
(I) and (II) give positive tests with Tollen's reagent.
B
(I) and (II) give positive tests with Fehling's solution.
C
(I) and (II) both react with Lucas reagent.
D
(I) and (II) both liberate H2 gas with sodium metal.
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Solution
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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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