Question

which one of the following pairs of substances illustrates the law of multiple proportions

Answer 1

Answer:

option 1

Explanation:

law of multiple proportion, states that if two elements form more than one compound between them, then the ratios of the masses of the second element which combine with a fixed mass of the first element will always be ratios of small whole numbers.

in option 1) O combine with fix amount of C in ratio of 1:2

whereas in option 3) O combine with N in ratio in fraction

and in option 2&4 the elements are not same

Answer 2

Answer:

the answer is

CO and carbon dioxide