Question

i) 2Pb0 + 2Pb + CO2
Mn02 + 4HCI—;• MnCl2 + 2Hp + Cl2
What is redox reaction ? Identify the substance oxidised and the substance reduced in the
above reactions.


CBSE Class X Science SA 2 (3 Marks)

Answer 1

Those reactions in which both oxidation and reduction occur simultaneously is called redox reaction.

(i) PbO is reduced, C is oxidised.
(ii) HCl is oxidised, MnO2 is reduced.

Answer 2

Answer:

Those reactions in which both oxidation and reduction occur simultaneously is called redox reaction. 

(i) PbO is reduced, C is oxidised. 

(ii) HCl is oxidised, MnO2 is reduced.