MCQ
In which of the following reactions, there is no change in the valency
- A$4KCl{O_3} \to \,3KCl{O_4} + KCl$
- B$S{O_2} + 2{H_2}S \to \,2{H_2}O + 3S$
- ✓$Ba{O_2} + {H_2}S{O_4} \to \,BaS{O_4} + {H_2}{O_2}$
- D$2BaO + {O_2}\, \to \,2Ba{O_2}$
✓
Answer
Correct option: C.
$Ba{O_2} + {H_2}S{O_4} \to \,BaS{O_4} + {H_2}{O_2}$
(c) In the reaction $\mathop {Ba{O_2}}\limits^{ + 2\,\,\,\,\,\,\,} + \mathop {{H_2}S{O_4}}\limits^{\, + 6} \to \mathop {BaS{O_4}}\limits^{ + 2\,\,\, + 6\,\,\,\,} + {H_2}{O_{}}$ valency is not changing.
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