$A$ metal used in storage batteries is

Assertion : For the Daniel cell,$Zn|Zn^{2+} || Cu^{2+}|Cu$ with $E_{cell} = 1.1 \ V$,the application of an opposite potential greater than $1.1 \ V$ results in the flow of electrons from cathode to anode.
Reason : $Zn$ is deposited at the anode,and $Cu$ is deposited at the cathode.

Give the anodic,cathodic,and overall reactions of a hydrogen-oxygen fuel cell.

When a copper wire is placed in a solution of $AgNO_3$,the solution acquires a blue colour. This is due to the formation of

The maximum work that can be obtained from the following cell is
$X|X^{2+}_{(aq)} || Y^{+}_{(aq)}| Y$
Given,$E^{\circ}_{X^{2+}/X} = -1.7 \ V, E^{\circ}_{Y^{+}/Y} = 0.8 \ V$

What is a primary battery? Provide a note on primary batteries and a note on dry cells.