WBJEE · Chemistry · d and f Block Elements
A given amount of \(\mathrm{Fe}^{2+}\) is oxidized by \(\mathrm{x}\) mol of \(\mathrm{MnO}_{4}\) in acidic medium. The number of moles of \(\mathrm{Cr}_{2} \mathrm{O}_{7}{ }^{2-}\) required to oxidize the same amount of \(\mathrm{Fe}^{2+}\) in acidic medium is
- A \(\mathrm{x}\)
- B \(0.83 \mathrm{x}\)
- C \(2.0 \mathrm{x}\)
- D \(1.2 \mathrm{x}\)
Answer & Solution
Correct Answer
(B) \(0.83 \mathrm{x}\)
Step-by-step Solution
Detailed explanation
As per Law of Equivalence no. of eq. of \(\mathrm{Fe}^{+2}=\) no. of eq. of \(\mathrm{KMnO}_{4}=\) no. of eq. of \(\mathrm{Cr}_{2} \mathrm{O}_{7}^{-2}\)…
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