Question

100 ml of hydrogen combine with 50 ml of oxygen to give 100 ml of water vapour. This statement is according to:

• A. Law of multiple proportions
• B. Gay Lussac's law
• C. Avagadro's law
• D. Dalton's atomic theory

Answer 1

The correct option is A Law of multiple proportions

Law of multiple proportions states that, when two elements combine to form more than one compound, the weights of the combining elements are in a ratio of small whole numbers.

Here, the hydrogen and oxygen combine in a ratio of $2:1$

So it is according to the law of multiple proportions and the correct answer is ( A )