KEAM 2016 Physics and Chemistry Paper

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Question : 74 of 120

Marks: +1, -0

In aqueous solution, Cr2+ is a stronger reducing agent than Fe2+. This is because

Cr2+ ion is more stable than Fe2+
Cr3+ ion with d3 configuration has favourable crystal field stabilisation energy
Cr3+ has half-filled configuration and hence more stable
Fe3+ in aqueous solution is more stable than Cr3+
Fe2+ ion with d6 configuration has favourable crystal field stabilisation energy

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