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  • Metallic sodium does not react normally with:Option: 1 Gaseous ammoniaOption: 2 But-2-yneOption: 3 EthyneOption: 4 tert-butyl alcohol

Metallic sodium does not react normally with:
Option: 1 Gaseous ammonia
Option: 2 But-2-yne
Option: 3 Ethyne
Option: 4 tert-butyl alcohol

Answers (1)

best_answer

As we have learnt,

Na metal is able to liberate \mathrm{H_{2}} from species containing acidic hydrogen.

The reactions are given below :

\text{NH}_{3}+\text{Na}\rightarrow \text{NaNH}_{2}+\text{H}_{2}

\text{CH}_{3}-\text{C}\equiv \text{CH}+\text{Na}\rightarrow \text{CH}_{3}-\text{C}\equiv \text{C}^{\circleddash }\text{Na}^{\bigoplus }+\text{H}_{2}

Since, But-2-yne does not contain acidic hydrogen, Na metal will not react with it.

Hence, the correct answer is option (2)

Posted by

sudhir.kumar

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