D-And F-Block Elements Ques 460

Question: In the laboratory, manganese (II) salt is oxidised to permanganate ion in aqueous solution by

Options:

A) hydrogen peroxide

B) cone. nitric acid

C) peroxy disulphate

D) dichromate

Show Answer

Answer:

Correct Answer: C

Solution:

In laboratory, manganese (II) ion salt is oxidised to permagnate ion in aqueous solution by peroxodi-sulphate. $ \underset{peroxodisulphateion}{\mathop{2M{{n}^{2+}}+S_2O_8^{2-}+8H_2O\xrightarrow{{}}}}, $ $ 2MnO_4^{-}+10SO_4^{2-}+16{{H}^{+}} $



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