Question

what is the difference between primary cell and secondary cell

Answer 1

primary cell cannot be recharged whereas a secondary cell can be recharged.In a primary cell chemical reaction is irreversible whereas in a secondary cell chemical reaction is reversible.The internal resistance is high for a primary cell whereas it is low for a secondary cell.In a primary cell, chemical energy is converted into electrical energy when current is drawn from it whereas in a secondary cell electrical energy is converted into chemical energy when current is passed through it and chemical energy is converted into electrical energy when current is drawn from it. A primary cell is light and  less expensive whereas  a secondary cell is heavy and expensive.

Answer 2

heya mate here is your answer
(i)I primary cell chemical reaction is irreversible
(ii) chemical energy is converted into electrical energy
(iii)it can not be charged
iv=it is light and cheap
secondary cell
(I)chaval reaction is reversible
ii. electrical energyis converted into chemical
iii it can be charged
iv it is heavy n costly