MHT CET · Chemistry · Redox Reactions
What is the oxidation state of As in \(\mathrm{H}_{3} \mathrm{AsO}_{4}\) ?
- A 3
- B 5
- C -3
- D -1
Answer & Solution
Correct Answer
(B) 5
Step-by-step Solution
Detailed explanation
\(\mathrm{H}_{3} \mathrm{AsO}_{4} \rightarrow(1 \times 3)+(\mathrm{x})+[4 \times(-2)]\) \(=3+\mathrm{x}-8\)
\(\therefore x=8-3=+5\)
\(\therefore\) Oxidation state of \(\mathrm{As}\) in \(\mathrm{H}_{3} \mathrm{AsO}_{4}=+5\)
\(\therefore x=8-3=+5\)
\(\therefore\) Oxidation state of \(\mathrm{As}\) in \(\mathrm{H}_{3} \mathrm{AsO}_{4}=+5\)
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