Aldehydes, Ketones, and Carboxylic Acids — Chemistry STD 12 Science — Question

A $4.0$ molar aqueous solution of $\mathrm{NaCl}$ is prepared and $500 \mathrm{~mL}$ of this solution is electrolysed. This leads to the evolution of chlorine gas at one of the electrodes (atomic mass: $\mathrm{Na}=23, \mathrm{Hg}=200 ; 1$ Faraday $=96500$ coulombs)

$1.$ The total number of moles of chlorine gas evolved is

$(A)$ $0.5$  $(B)$ $1.0$  $(C)$ $2.0$  $(D)$ $3.0$

$2.$  If the cathode is a $\mathrm{Hg}$ electrode, the maximum weight ( $\mathrm{g}$ ) of amalgam formed from this solution is

$(A)$ $200$  $(B)$ $225$  $(C)$ $400$  $(D)$ $446$

$3.$ The total charge (coulombs) required for complete electrolysis is

$(A)$ $24125$  $(B)$ $48250$  $(C)$ $96500$  $(D)$ $193000$

Give the answer question $1,2$ and $3.$