NEET UG CHEMISTRY MCQ: HYDROGEN

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Analyzing +4 | -1

In which of the following reactions does hydrogen act as an oxidising agent:-

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Correct option: C

\mathrm{Na}+\mathrm{H}_2 \longrightarrow

Option C (

\mathrm{Na}+\mathrm{H}_2 \longrightarrow

) is correct because in this reaction, hydrogen gains an electron and its oxidation state changes from 0 to -1, thus acting as an oxidizing agent.

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\mathrm{CaC}_2+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{Ca}(\mathrm{OH})_2+' \mathrm{X}\,'

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\mathrm{X}

\mathrm{Y}

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