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Question

Chemistry Question on Some basic concepts of chemistry

Equivalent and molecular masses are same in

A

Mohr's salt

B

potassium permanganate

C

potassium dichromate

D

oxalic acid.

Answer

Mohr's salt

Explanation

Solution

Mohr's salt is 'FeSO4.(NH4)2SO46H2O {FeSO_4 .(NH_4)_2 SO_4 6H_2O}.
Fe2+>Fe3++e{Fe^{2+} -> Fe^{3+} + e^-}
\therefore Equivalent wt. of Mohr's salt = Mol.wt1Mol.wt {1}
=3921=392= \frac{392}{1} = 392