Competitive Thinking

The volume if oxygen liberated from $15 \mathrm{mL}$ of $20 \mathrm{volume}$ ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ is______       
 

The approximate mass of ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ present in $200 \mathrm{mL}$ of $100$ volume ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ in grams is _______
 

The strength in volumes of a solution containing $30.36 \mathrm{g}/\mathrm{L}$ of ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ is

i. ${\mathrm{H}}_{\mathrm{2}}{\mathrm{O}}_{\mathrm{2}} + {\mathrm{O}}_{\mathrm{3}} \to {\mathrm{H}}_{\mathrm{2}}\mathrm{O} + 2{\mathrm{O}}_{\mathrm{2}}$

ii. ${\mathrm{H}}_{\mathrm{2}}{\mathrm{O}}_{\mathrm{2}} + {\mathrm{Ag}}_{\mathrm{2}}\mathrm{O} \to 2\mathrm{Ag} +{\mathrm{H}}_{\mathrm{2}}\mathrm{O} + {\mathrm{O}}_{\mathrm{2}}$

Role of hydrogen peroxide in the above reactions is respectively    
[AIPMT 2014]

In which of the following reaction hydrogen peroxide is a reducing agent?    

[BHU 1995]

From the following statements regarding ${\mathrm{H}}_2{\mathrm{O}}_2$, choose the INCORRECT statement.
[JEE(MAIN) 2015]

Which of the following gas is insoluble in water?    

[Pb. CET 2003]

Heavy water is _______