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(B) Ammoniacal $AgNO_3$ (Tollens' reagent) reacts with terminal alkynes $(R-C\equiv CH)$ due to the presence of acidic hydrogen atoms attached to the

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$CH_3-CH=CH-C\equiv CH$

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(B) Ammoniacal $AgNO_3$ (Tollens' reagent) reacts with terminal alkynes $(R-C\equiv CH)$ due to the presence of acidic hydrogen atoms attached to the $sp$-hybridized carbon.In the given options,$CH_3-CH=CH-C\equiv CH$ is a terminal alkyne.Therefore,it contains an acidic hydrogen atom and will undergo a reaction with ammoniacal $AgNO_3$ to form a white precipitate of silver acetylide.

Which of the following will undergo a reaction with ammoniacal $AgNO_3$?

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