Question

Give the reaction for sodium with ethyne

Answer 1

Ethyne + Sodium ——— catalysts ammonia ——> sodium acetylide + hydrogen gas

Answer 2

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Sodium : Na

$Ethyne \: \colon C_2H_4$

General formula of Alkene is

$C_nH_{2n-2}$

Eth stands for 2

If we put the n = 2 in general formula

$C_2H_{2.2-2} \\ C_2H_{4-2} \\ C_2H_2$

Reaction is

$\red{2Na \: + \: 2C_2H_2 \longrightarrow\: 2NaHC_2 \: + \: H_2}$

The reaction at temperature t K forms the sodium hydroacetylide and hydrogen gas liberated.

" t " is generally 370 K approx.

Statement : The given reaction is single displacement type.