In the laboratory, manganese $$(II)$$ salt is oxidised to permanganate ion in aqueous solution by
A.
hydrogen peroxide
B.
conc. nitric acid
C.
peroxy disulphate
D.
dichromate
Answer :
peroxy disulphate
Solution :
In laboratory, manganese $$\left( {II} \right)ion$$ salt is oxidised to permagnate ion in aqueous solution by peroxodi-sulphate.
$$\mathop {2M{n^{2 + }} + {S_2}O_8^{2 - } + 8{H_2}O}\limits_{{\text{peroxodisulphate ion}}} \to 2MnO_4^ - + 10\,SO_4^{2 - } + 16{H^ + }$$
Releted MCQ Question on Inorganic Chemistry >> D and F Block Elements
Releted Question 1
When same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volume of hydrogen evolved is