Laws of chemical combinations can be explained on the basis of:
Gay lussacs law
Mole concept
Dalton's atomic theory
Avogadro law
Dalton's atomic theory could explain the laws of chemical combinations.
Question 22
One of the statements of Dalton's atomic theory is given below "Compounds are formed when atoms of different elements combine in a fixed ratio"
(a) Law of conservation of mass (b) Law of definite proportions
(c) Law of multiple proportions (d) Avogadro law