COMEDK · Chemistry · 9. Redox Reactions
In the ionic equation, \(\mathrm{BiO}_{3}^{-}+6 \mathrm{H}^{+}+x e^{-} \longrightarrow \mathrm{Bi}^{3+}+3 \mathrm{H}_{2} \mathrm{O}\) the value of \(x\) is
- A 3
- B 4
- C 2
- D 6
Answer & Solution
Correct Answer
(C) 2
Step-by-step Solution
Detailed explanation
For the following reaction, \[ \mathrm{BiO}_{3}^{-}+6 \mathrm{H}^{+}+x e^{-} \longrightarrow \mathrm{Bi}^{3+}+3 \mathrm{H}_{2} \mathrm{O} \] On balancing charge on both sides \[ -1+6+x(-1)=3+3 \times 0 \] \[ \therefore \quad x=2 \]
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