Give appropriate scientific reasons for the following statements :
Electrolysis of molten lead bromide is considered to be a redox reaction.

Electrolysis of molten lead bromide is considered as redox reaction . Give reason .

Give appropriate scientific reasons for the following statements : During electrolysis of molten lead bromide, graphite anode is preferred to other electrodes

During the electrolysis of molten lead bromide :

Electrolysis is considered to be an endothermic reaction.

During electrolysis of molten lead bromide a redox reaction is said to occur.

Give appropriate scientific reasons for the following statements: Zinc oxide can be reduced to zinc by using carbon monoxide, but aluminium oxide cannot be reduced by a reducing agent.

Give scientific reasons for the following statements: Loss of nucleus and mitochondria make erythrocytes more efficient in their function.

Give reasons for the following statements: Zinc is considered an element, while zinc sulphide is considered a compound.