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) Yes, the statement is true.
(b) According to the law of multiple proportions
(c), Hydrogen and oxygen react to form water and hydrogen peroxide
H2 + 1/2O2 → H2O
H2 + O2 → H2O2
Masses of oxygen which combine the fixed mass of hydrogen are in the ratio 16:32 or 1