Question

Chlorine is prepared in laboratory by heating a mixture of $NaCl$ and one other compound with conc. $H_{2}S{O}_4$. Other compound is:

• A. $KMn{O}_4$
• B. $Mn{O}_2$
• C. $K_{2}C{r}_2{O}_7$
• D. none of these

Answer 1

The correct option is B $Mn{O}_2$

For preparation of chlorine, steps involved are

$H_2{SO}_4+NaCl⟶HCl+{NaHSO}_{4}4HCl+{MnO}_2⟶{MnCl}_2+{2H}_{2}O+{Cl}_2\left(gas\right)$.

So, The compound used is ${MnO}_2$.

So, correct answer is option $B$.