Question

If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in whole number ratio. (a) Is this statement true? (b) If yes, according to which law? (c) Give one example related to this law

A box contains some identical red coloured balls, labelled as A, each weighing 2 grams. Another box contains identical blue coloured balls, labelled as B, each weighing 5 grams. Consider the combinations AB, AB2, A2B and A2B3 and show that law of multiple proportions is applicable.

Element X forms five stable oxides with oxygen of formula X2O, XO, X2O3, X2O4 and X2O5. The formation of these oxides explains: