Question

Given below are two statements:

Statement 1: ${\mathrm{H}}_2{\mathrm{O}}_2$ can act as both oxidising and reducing agents in the basic medium.

Statement 2: In the hydrogen economy, energy is transmitted in the form of dihydrogen.

In the light of the above statements, choose the correct ans: from the options given below:

• A. Statement 1 is false but statement 2 is true
• B. Both statement 1 and statement 2 is true
• C. Statement 1 is true but statement 2 is false
• D. Both statement 1 and statement 2 are false

Answer 1

The correct option is B

Both statement 1 and statement 2 is true

Answer: (B)

Explanation for correct option:

Statement -1

${\mathrm{H}}_2{\mathrm{O}}_2$ can act as an oxidizing and reducing agent in both acidic and basic mediums.

$\left(\mathrm{i}\right)2{\mathrm{Fe}}^{2+}+{\mathrm{H}}_2{\mathrm{O}}_2\to 2{\mathrm{Fe}}^{3+}+2{\mathrm{OH}}^{-}$

In this reaction ,${\mathrm{H}}_2{\mathrm{O}}_2$ acts as reducing agent.

$2\stackrel{+7}{\mathrm{M}}{\mathrm{nO}}_4^{-}+3{\mathrm{H}}_2{\mathrm{O}}_2\to 2\stackrel{+4}{\mathrm{M}}{\mathrm{nO}}_2+3{\mathrm{O}}_2+2{\mathrm{H}}_2\mathrm{O}+2{\mathrm{OH}}^{-}$

In this reaction, ${\mathrm{H}}_2{\mathrm{O}}_2$ acts as reducing agent.

Statement -2

The basic principle of hydrogen economy is the transportation and storage of energy in the form of liquids or gaseous dihydrogen. Advantage of hydrogen economy is that energy is transmitted in the form of dihydrogen and not as electric power.

Hence option (B) is correct option.