How many mole of electron are required fro the reduction of 1 mole of $\mathrm{Cr}^3+$ to…

How many mole of electron are required fro the reduction of 1 mole of $\mathrm{Cr}^3+$ to $\mathrm{Cr}_{(\mathrm{s})}$ ?
  1. $3$
  2. $6$
  3. $1$
  4. $\frac{6.022 \times 10^{23}}{3}$

Solution

$\underset{1 \mathrm{mo1}}{\mathrm{Cr}^{+3}}+\underset{3 \mathrm{mo1}}{3 \mathrm{e}^{-}} \rightarrow \mathrm{Cr}(\mathrm{s})$

Asked in: MHT CET 2022 (05 Aug Shift 1)

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