Question

Identify the oxidizing and reducing agents in the following reactions.
4NH3 +502 ____4NO +6H2O
2Mg +O2 ____2MgO
V2O5 +5Ca ______2V +5CaO
2H2 +O2 ______2H2O
3Fe +4H2O _____Fe3O4 +4H2





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Answer 1

Answer:

(a) Pb

3

O

4

+8HCl → 3PbCl

2

+Cl

2

+4H

2

O

Oxidising agent - Pb

3

O

4

Pb

3

O

4

gets reduced to PbCl

2

and oxidises HCl to Cl

2

(b) Mg +2H

2

O → Mg(OH)

2

+H

2

H

2

O is an oxidising agent as it oxidises Mg to Mg(OH)

2

(Mg

2+

)

(c)CuSO

4

+Zn → Cu + ZnSO

4

CuSO

4

is an oxidising agent as it oxidises Zn to ZnSO

4

(d) V

2

O

5

+5Ca → 2V +5CaO

V

2

O

5

is a oxidising agent as it oxidises Ca to CaO.

Explanation:

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