Asseration: Equivalent mass of `H_(2)SO_(4)` in lead storage battery is `49`.
Reason: In lead storage battery, `H_(2)SO_(4)` acts both as oxidant and reductant.

Options

A. If both the asseration and reason are ture and reason is the true explation of the assertion.
B. If both the asseration and reason are ture but the reason is not the correct explanation of assertion.
C. If the asseration is true but reason is false.
D. If asseration is false bit reason is true.

Answer

D

Explanation

Anode:
`Ph(s)+HSO_(4)^(-)+H_(2)OrarrPbSO_(4)+2e+H_(3)O^(+)`
Cathode:
`PhO_(2)(s)+HSO_(4)^(-)+3H_(3)O^(+)+2erarrPbSO_(4)(s)+5H_(2)o`
Net `Pb+2HSO_(4)^(-)+2H_(3)O^(+)+PbO_(2)rarrPbSO_(4)+4H_(2)O`
Thus, `2H_(2)SO_(4)` consumes `2` electrons.
`:.E. mass=("molar mass")/(1)=98`