Given : $\mathrm{XNa}_{2} \mathrm{HAsO}_{3}+\mathrm{YNaBrO}_{3}+\mathrm{ZHCl} ightarrow…

Given : $\mathrm{XNa}_{2} \mathrm{HAsO}_{3}+\mathrm{YNaBrO}_{3}+\mathrm{ZHCl} ightarrow \mathrm{NaBr}+\mathrm{H}_{3} \mathrm{AsO}_{4}+\mathrm{NaCl}$
The values of $X, Y$ and $Z$ in the above redox reaction are respectively :
  1. $2,1,2$
  2. $2,1,3$
  3. $3,1,6$
  4. $3,1,4$

Solution

On balancing the given reaction, we find
$3 \mathrm{Na}_{2} \mathrm{HAsO}_{3}+\mathrm{NaBrO}_{3}+6 \mathrm{HCl} \longrightarrow 6 \mathrm{NaCl}+3 \mathrm{H}_{3} \mathrm{AsO}_{4}+\mathrm{NaBr}$

Asked in: JEE-TOPICTESTS-CHEMISTRY

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