Question

In the following question, more than one of the answers given may be correct. Select the correct answers and make it according to the code:
In the cell $Zn\left(s\right)|Z{n}^{2+}||H^{+}|H_{2}Pt$; the addition of $H_{2}S{O}_4$ to the cathode compartment, will:
$1$. decrease $E$
$2$. Increase $E$
$3$. shift equilibrium to left
$4$. shift equilibrium to right

• A. $1,2$ and $3$ are correct
• B. $1$ and $2$ are correct
• C. $2$ and $4$ are correct
• D. $1$ and $3$ are correct

Answer 1

Answer: (C)

$2$ and $4$ are correct

According to le Chatelier's principle, In the net reaction, on increasing the concentration of $H^{+}$ ion, the equilibrium shifts to right direction; and accrding to $E_{CELL}$ equation on increasing the $H^{+}$ ion concentration, the value of $E_{CELL}$ will increase;

hence, both 2 and 4 are correct.