Question

Hydrogen and oxygen combine to form $H_2O_2$ and $H_2O$ containing 5.93% and 11.2% hydrogen respectively. The data illustrates

• A. Law of conservation of mass
• B. Law of constant proportions
• C. Law of reciprocal proportions
• D. Law of multiple proportions

Answer 1

Answer: (D)

Law of multiple proportions

Answer 2

$\begin{matrix}H_{2} O\\\ H : O\\\ 5\cdot93 : 94.07\end{matrix} \begin{matrix}H_{2} O_{2}\\\ H : O\\\ 11\cdot2: 88\cdot8 or\\\ 5\cdot93: 47\cdot0\end{matrix}$ Ratio of different masses of $O$ which combines with same mass of $H$ is $94\cdot07: 47\cdot0$ or $2:1$