What is the electrochemical equivalent (in g.coulomb^–1) of silver ?

 (F = 96500 coulomb)

According to faradays first law, w is directly proportional to q, mathematically,  $\mathrm{w}\propto \mathrm{q}$
Therefore, $\mathrm{w}=\mathrm{eq}$, where q = electrochemical equivalent
Now, 1 amp current is passed for 1 sec then q=1C
w=e(1)
Now for silver.
${\mathrm{Ag}}^{+}+{\mathrm{e}}^{-}\to \mathrm{Ag}$,       

Molecular weight = 108, formula is 
Molecular weight= electrochemical equivalent x F
By putting the above  values
∴ Electrochemical equivalent= $\frac{108}{\mathrm{F}}$

Therefore option B is correct.