Question

During the discharge of a lead storage battery, density of `H_(2)SO_(4)` fall from 1.3 to `1.14g//mL` Sulphuric acid of density `1.3g//ml` is 40W % and that of `1.14g//mL` is 20W% The battery holds two litre of the acid and volume remains practically constant during dicharging. The number of ampere- sec used from the battery is.
A. `3xx96,500`
B. `6xx96,500`
C. `9xx96,500`
D. `12xx96,500`

Answer 1

Correct Answer - B
`M_(1)-M_(2)=10/98[1.3xx40-1.14xx20]`
`=3 "Mole"//"Litre"=6"Moles Per" 2 " litre"`