NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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The formula mass of Mohr’s salt is 392. The iron present in it is oxidised by

KMn{O_4}

in acid medium. The equivalent mass of Mohr’s salt is

View answer and explanation

Correct option: A

392

The correct answer is 392 because Mohr's salt,

FeSO_4(NH_4)_2SO_4.6H_2O

, undergoes a one-electron change (

Fe^{2+} \to Fe^{3+}

) when oxidized by

KMnO_4

in acidic medium, so its equivalent mass equals its molar mass.

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