First slide

Alkynes

Question

Which of the following will react with prop-1-yne ?

Moderate

A

${Cu}_{2} {Cl}_{2} + {NH}_{4} OH$
B

${AgNO}_{3} + {NH}_{4} OH$
C

Cs
D

${KMnO}_{4}$

Solution

(l) is Fehling solution but (2) is Tollen's reagent. Both (1) & (2) reacts terminal alkyne (3) alkali metals react with terminal alkyne (a) In basic medium hydroxylation occurs followed by oxidation

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