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Chemistry · REDOX REACTIONS
हिन्दीConsider the Stock notation representations of \( \text{HAuCl}_4 \), \( \text{Tl}_2\text{O} \), \( \text{Fe}_2\text{O}_3 \), and \( \text{MnO}_2 \). What is the arithmetic mean of the oxidation numbers of the metallic elements Au, Tl, Fe, and Mn in these respective compounds?
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Correct answer · Option C
\( 2.75 \)
Explanation
Oxidation numbers: Au in \( \text{HAuCl}_4 \) is \( +3 \); Tl in \( \text{Tl}_2\text{O} \) is \( +1 \); Fe in \( \text{Fe}_2\text{O}_3 \) is \( +3 \); Mn in \( \text{MnO}_2 \) is \( +4 \). Arithmetic mean \( = \frac{3 + 1 + 3 + 4}{4} = \frac{11}{4} = 2.75 \).
