Which one of the following set of compounds correctly illustrates the law of reciprocal proportions?

Step-by-step solution

The element O   and   H combine separately with the third element P to form P 2 O 3 and PH 3 respectively and directly combine to form H 2 O . In PH 3 , 31 parts by mass of P combine with 3 parts by mass of H and in P 2 O 3 , 62 parts by mass of P combine with 48 parts by mass of O . Thus the masses of H   and   O which combines with fixed mass of H (say 62 parts by mass) are 6   and   48 and they bear the ratio of 1 : 8 Now in H 2 O , 2 parts by mass of H combines with 16 parts by mas