s-Block ElementsHard

Question

White Mn(OH)2 becomes green coloured compound on reaction with sodium peroxide. It is :

Options

A.because of the formation of manganate ions.
B.because of the formation of MnO(OH)2.
C.because of the formation of Mn2+ ions.
D.because of the formation of  permanganate ions.

Solution

Mn(OH)2 + 2O22- → MnO42- (green) + 2OH-.

Create a free account to view solution

View Solution Free
Topic: s-Block Elements·Practice all s-Block Elements questions

More s-Block Elements Questions

Which one of the alkali metals, forms only, the normal oxide, M2O on heating in air...A piece of magnesium ribbon was heated to redness in an atmosphere of nitrogen and on cooling, water was added, the gas ...Which of the following statement is incorrect ?...Which of the following two ions are closer to one another in size ?...Washing soda on heating :...