What is formed when calcium carbide reacts with heavy water?

In lab, ${\mathrm{H}}_{\mathrm{2}}{\mathrm{O}}_{\mathrm{2}}$ is prepared by _______.

[CPMT 2002; MH CET 2003, Pb. PMT 2004, BCECE 2005]

What is the product of the reaction of ${\mathrm{H}}_{\mathrm{2}}{\mathrm{O}}_{\mathrm{2}} \mathrm{with} {\mathrm{Cl}}_{\mathrm{2}}$?

[RPET 2003]

The volume of oxygen liberated from $0.68 \mathrm{g}$ of ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ is_____        

[MH CET 2014]