Question

Match Column-I with Column-II.

Column I		Column II
A	Cell in which electrolyte is a paste of $KOH$ and $ZnO$. This cell is used in low current devices like hearing aids, watches, etc.	p	$H _{2}- O _{2}$ fuel cell
B	Cell in which $38 \% H _{2} SO _{4}$ solution is used as an electrolyte.	q	Mercury cell
C	Cell in which vapours produced during electrochemical reaction were condensed and added to drinking water	r	Lead storage battery
D	Cell having longer life than lead storage cell and is expensive to manufacture	s	Nickel-Cadmiumcell

• A. $A -( r ), B -( q ), C -( p ), D -( s )$
• B. $A -( q ), B -( r ), C -( p ), D -( s )$
• C. $A -( q ), B -( r ), C -( p ), D -( s )$
• D. $A -( q ), B -( r ), C -( s ), D -( p )$

Answer 1

Answer: (B)

Correct answer is (b) $A -( q ), B -( r ), C -( p ), D -( s )$