Question

From the given cells : Lead storage cell, Mercury cell, Fuel cell and Dry cell.

Answer 1

(i) Mercury cell,

(ii) Fuel cell,

(iii) Lead storage cell,

(iv) Dry cell.

Answer 2

(i) Mercury batteries are used in the shape of button cells in hearing aids.

(ii) A fuel cell power generation system with liquid hydrogen and liquid oxygen reactants was used in Apollo Space Programme.

(iii) lead–acid batteries is used in automobiles and inverters.

(iv) Dry cell does not have long life.