Question

Identify the reducing agents in the following:
(a) $4NH_3+5O_2\:------\:4NO+6H_20$
(b) $Fe_20_3+3CO\:------\:2Fe+3CO_2$

Answer 1

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$4NH_{3}+5O_{2}------>4NO+6H_{2}0</p><p>$

$NH_{3}$ is the reducing agent because :

• It reduces $O_{2}$ by donating hydrogen
• The reduced product is $H_{2}O$

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$Fe_{2}0_{3}+3CO------>2Fe+3CO_{2}$

$CO$ is the reducing agent because :

• It reduces $Fe_{2}0_{3}$ to $Fe$

Hope it helps you:-)

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Answer 2

Answer:

4NH

3

+5O

2

→4NO+6H

2

O

Reducing agent is the one which reduces other substance(by removal of oxygen or addition of hydrogen) and itself gets oxidised.

In the above reaction, ammonia(NH

3

) is the reducing agent as it is being oxidised by oxygen (O

2

) form nitric oxide (NO) and water (H

2

O).