Batteries

Select the incorrect statement while a lead storage battery is discharging.

Which of the following is correct labelling of lead storage battery:

In hydrogen-oxygen fuel cell, the carbon rods are immersed in hot aqueous solution of:

Which of the following are correctly label for ${\mathrm{H}}_2, {\mathrm{O}}_2$ fuel cell

Which of the following is correct labelling of ${\mathrm{H}}_2, {\mathrm{O}}_2$ fuel cell:

The anode reaction which is taking place in nickel- cadmium battery can be represented by which of the following equation?

During the discharging of a lead storage battery the reaction occurring at anode is represented by:-

In the lead-acid battery during charging, the cathode reaction is

In ${\mathrm{H}}_2-{\mathrm{O}}_2$ fuel cell the reaction occurring at cathode is

Which of the following reaction occurs at anode during the recharging of lead storage battery ?

Which of the following reaction occurs at cathode in ${\mathrm{H}}_2-{\mathrm{O}}_2$ fuel cell ?

Which of the following will be formed when lead storage battery is charged?

When lead storage battery discharged, then

During the charging of a lead-acid cell 

While charging the lead storage battery ______.

A lead storage battery consists of a lead anode and a grid of lead packed with lead dioxide as the cathode. The electrolyte taken is 39% $H_{2}S{O}_4$ by mass having a density of $1.29gm{L}^{-1}.$ The battery holds 3.5 L of the acid. During the discharge of the battery, the density$H_{2}S{O}_4$ falls from$1.294gm{L}^{-1}$ to $1.139gm{L}^{-1}$ which is 20%$H_{2}S{O}_4$ by mass.

Moles of sulphuric acid lost during discharge is: 

When a lead storage battery is discharged;

Which represents the positive electrode of a nickel-cadmium battery?