Hydrogen peroxide converts manganese $(II)$ hydroxide rapidly into ' . . . . . . ' in alkaline medium. Which of the following compounds is suitable for filling in the blank?

Which of the following statements is incorrect?

Which of the following metals will not reduce $H_2O_2$?

Why can dilute solutions of hydrogen peroxide not be concentrated by heating? How can a concentrated solution of hydrogen peroxide be obtained?

Given below are two statements:
Statement $I$: $H_{2}O_{2}$ can act as both an oxidising and a reducing agent in a basic medium.
Statement $II$: In the hydrogen economy,the energy is transmitted in the form of dihydrogen.
In the light of the above statements,choose the correct answer from the options given below:

The strength of $H_2O_2$ sample available from market is $8.32\% \ W/V$. The volume and molar concentration of this sample are ......... and ........ respectively.