The reaction in which dihydrogen (H_2) acts a | vedclass

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(C) An oxidising agent is a substance that gains electrons or causes another substance to be oxidised. In this process,the oxidising agent itself gets

Vedclass · Accepted Answer

$2Na_{(s)} + H_{2(g)} \longrightarrow 2NaH_{(s)}$

Vedclass · Answer

(C) An oxidising agent is a substance that gains electrons or causes another substance to be oxidised. In this process,the oxidising agent itself gets reduced.In the reaction $2Na_{(s)} + H_{2(g)} \longrightarrow 2NaH_{(s)}$,the oxidation state of $H$ changes from $0$ in $H_2$ to $-1$ in $NaH$.Since the oxidation state of hydrogen decreases,it is being reduced.Because $H_2$ is being reduced,it acts as an oxidising agent for $Na$ (which is oxidised from $0$ to $+1$).In the other options,$H_2$ acts as a reducing agent because it is being oxidised (oxidation state increases from $0$ to $+1$).

The reaction in which dihydrogen $(H_2)$ acts as an oxidising agent is:

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