Question

Question No. 40
An element forms two oxides of 2.900 g and 2.250 g of these
oxides each was found to contain 1.12 L of O, at STP. Which
law of chemical combination is illustrated by these data?
(1) Law of conservation of mass
(2) Law of multiple proportion
(3) Law of constant composition
(4) Gay Lussac's law
O (1)
(2)
(3)​

Answer 1

Answer:

Law of multiple proportions states that when two elements combine to form two or more compounds, the masses of one element which combine with the fixed mass of another element, will always be in ratio of whole numbers.

The statement is :

An element forms two oxides XO and XO2 containing 50% and 60% of oxygen respectively. The ratio of masses of O2 which combine with 1g of element of 2:3.