Question

Which of the following react with sodium metal 1.ethane 2.ethyne 3.1 -butyne 4.2- butyne

Answer 1

The correct answer is 2 and 3

Terminal alkynes such as ethyne and 1-butyne will react with sodium metal.

• The hydrogen atoms attached to the triple bond of alkynes are acidic in nature

Formation of alkali metal acetylides:

•  Ethyne and other terminal alkynes or 1-alkynes react with strong bases such as sodium metal at 475 K or sodamide in liquid ammonia at 196 K to form sodium acetylides with the evolution of H₂ gas.
   

Comments

Thanks

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Please refer book for organic chemistry

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O.P Tandon for theoretical study and D.K Singh Pearson publication for practice.

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And what about MS Chouhan

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MS Chouhan is also the best 75% of questions match with D.K Singh.

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Okay..................