Using electron transfer concept, identify the oxidant and reducta… - Vidyadip

Question

Using electron transfer concept, identify the oxidant and reductant in the following redox reactions.

$\text{Zn(s)}+2\text{H}^+\text{(aq)}\xrightarrow{\ \ \ \ \ \ \ \ \ }\text{Zn}^{2+}\text{(aq)}+\text{H}_2\text{(g)}$
$2[\text{Fe}(\text{CN})_6]^{4-}\text{(aq)}+\text{H}_2\text{O}_2\text{(aq)}+2\text{H}^+\text{(aq)}\\\xrightarrow{\ \ \ \ \ \ }2[\text{Fe}\text{(CN)}_6]^{3-}\text{(aq)}+2\text{H}_2\text{O}\text{(l)}$
$2[\text{Fe(CN)}_6]^{3-}\text{(aq)}+2\text{OH}^-\text{(aq)}+\text{H}_2\text{O}_2(\text{aq})\\\xrightarrow{\ \ \ \ \ \ \ \ }2[\text{Fe(CN)}_6]^{4-}\text{(aq)}+\text{O}_2 (\text{g}) +2\text{H}_2\text{(l)}$
$\text{BrO}^-_3\text{(aq)}+\text{F}_2\text{(g)}+\text{2OH}^-\text{(aq)}\xrightarrow{\ \ \ \ \ \ \ \ }\\\text{BrO}^-_4\text{(aq)}+\text{F}^-\text{(aq)}+\text{H}_2\text{O(l)}$
$2\text{NaClO}_3(\text{aq})+\text{I}_2\text{(aq)}\xrightarrow{\ \ \ \ \ \ \ }\text{2NaIO}_3\text{(aq)}+\text{Cl}_2\text{(g)}$

✓

Answer

Oxidants:
i. $\mathrm{H}^{+}$
ii. $\mathrm{H}_2 \mathrm{O}_2$
iii. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$
iv. $\mathrm{F}_2$
v. $\mathrm{NaClO}_3$

Reductants:
i. Zn
ii. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$
iii. $\mathrm{H}_2 \mathrm{O}_2$
iv. $\mathrm{BrO}_3^{-}$
v. $2l^2$

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