Question

The statement related to law of definite proportions is:

• A. The ratio of oxygen in H\textsubscript{2}O and H\textsubscript{2}O\textsubscript{2} with respect to fixed mass of hydrogen atom is a whole number
• B. \% of oxygen in H\textsubscript{2}O is constant irrespective of the source
• C. Equal volume of all gases at the same temperature and pressure should contain equal number of molecules
• D. Matter can neither be created nor destroyed

Hint:

Law of definite proportions = fixed composition by mass for any compound from any source.

Answer 1

The Correct Option is B

Law of definite proportions states that a given compound always contains the same elements in the same proportion by mass, regardless of the source.
In water (H\textsubscript{2}O), the mass ratio of hydrogen to oxygen is always fixed.