Question

In each reaction identify the oxidizing agent and the reducing agent.

A) Na + O2 --> Na2O

B) Zn + Pb(NO3)2 --> Zn(NO3)2 +Pb

Answer 1

Explanation:

i)O.A= Oxygen,R.A=Na

ii)O.A=Pb(NO3)2,R.A=Zn

Answer 2

Explanation:

In reaction 1st sodium is oxidised because it combines with oxygen to form sodium oxide. Oxygen is reduced because it is converted into sodium oxide.

In reaction 2nd zinc is oxidised because it combines with lead nitrate to form zinc nitrate. lead nitrate is reduced because it is converted into lead.

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