Question

When is a substance said to be reduced in a chemical reaction?​

Answer 1

Answer:

If a substance gains a. hydrogen atom or loses an oxygen atom , or gains 1 negative charge , it is said to be reduced.

Answer 2

Answer:

It is said if hydrogen is added to it or oxygen is removed from it

Explanation:

In a chemical reaction, if oxygen is removed or Hydrogen is getting added then we call the equation as reduction reaction.

Cu2O + H2 ----->2Cu + H2O

Here cuprous oxide is said to be reduced as oxygen is removed.

The reduction agent is H2.

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