(A) $\mathrm{HOCl}+{\mathrm{H}}_2{\mathrm{O}}_2\to {\mathrm{H}}_3{\mathrm{O}}^{+}+{\mathrm{Cl}}^{-}+{\mathrm{O}}_2$

(B) ${\mathrm{I}}_2+{\mathrm{H}}_2{\mathrm{O}}_2+2^{-}\mathrm{OH}\to 2{\mathrm{I}}^{-}+2{\mathrm{H}}_2\mathrm{O}+{\mathrm{O}}_2^{-}$

Choose the correct option:

The equation depicts the oxidizing nature of H₂O₂ among the following is-

1. $\begin{array}{l}{\mathrm{KIO}}_4+{\mathrm{H}}_2{\mathrm{O}}_2\to {\mathrm{KIO}}_3+{\mathrm{H}}_2\mathrm{O}+{\mathrm{O}}_2\end{array}$

2. $\begin{array}{l}2{\mathrm{I}}^{-}+{\mathrm{H}}_2{\mathrm{O}}_2+2{\mathrm{H}}^{+}\to {\mathrm{I}}_2+2{\mathrm{H}}_2\mathrm{O}\end{array}$

3. ${\mathrm{I}}_2+{\mathrm{H}}_2{\mathrm{O}}_2+2{\mathrm{OH}}^{-}\to 2{\mathrm{I}}^{-}+2{\mathrm{H}}_2\mathrm{O}+{\mathrm{O}}_2$

4. ${\mathrm{Cl}}_2+{\mathrm{H}}_2{\mathrm{O}}_2\to 2\mathrm{HCl}+{\mathrm{O}}_2$

The volume strength of 8.9 M H₂O₂ solution calculated at 273 K and 1 atm is-

(R = 0.0821 L atm K^–1 mol^–1) rounded off to the nearest integer)

1. 100

2. 80

3. 120

4.  60

Hydrogen peroxide oxidises [Fe(CN)₆]^4– to [Fe(CN)₆]^3– in acidic medium but reduces [Fe(CN)₆]^3– to [Fe(CN)₆]^4– in alkaline medium. The other products formed are, respectively:

1. (H₂O + O₂) and H₂O

2. (H₂O + O₂) and (H₂O + OH^–)

3. H₂O and (H₂O + O₂)

4. H₂O and (H₂O + OH^–)