JEE Mains · Chemistry · STD 11 - 7. Redox reactions
In order to oxidise a mixture of \(1\) mole each of \(FeC_2O_4\), \(Fe_2(C_2O_4)_3\), \(FeSO_4\) and \(Fe_2(SO_4)_3\) in acidic medium, the number of moles of \(KMnO_4\) required is
- A \(3\)
- B \(2\)
- C \(5\)
- D \(7\)
Answer & Solution
Correct Answer
(B) \(2\)
Step-by-step Solution
Detailed explanation
In acidic medium, \(KMnO_4\) acts as an oxidising agent and gets reduced to \(Mn^{2+}\). The n-factor for \(KMnO_4\) is \(5\). The n-factors for the given reducing agents are calculated based on the total number of moles of electrons lost per mole of the compound: For…
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