Test Index

UPSC NDA I 2015 General Ability Paper

Question : 96 of 150

Marks: +1, -0

In the reaction ZnO + C → Zn + CO, 'C' acts as

Solution:

Concept:

In a redox reaction, the substance that gets oxidized (loses electrons) while reducing another is called a reducing agent.

Explanation:

The reaction is:

\mathrm{ZnO + C \rightarrow Zn + CO}

Here,

\mathrm{ZnO}

loses oxygen to form

\mathrm{Zn}

— it is reduced.

Carbon gains oxygen to form

\mathrm{CO}

— it is oxidized.

A reducing agent donates electrons and gets oxidized itself.

Since carbon is oxidized and causes the reduction of

\mathrm{ZnO}

, it acts as a reducing agent.

Thus, option D is correct.

Answer:

D. a reducing agent

Go to Question:

Prev Question

Next Question