Which of the following sets of compounds correctly ltbr. Illustrate the law of reciprocal proportions?

Options

A. `P_(2)O_(3),PH_(3), H_(2)O`
B. `P_(2)O_(5),PH_(3), H_(2)O`
C. `N_(2) O_(5),NH_(3), H_(2)O`
D. `N_(2) O,NH_(3), H_(2)O`

Answer

A

Explanation

`P_(2) O_(3), PH_(3) and H_(2) O ` illustrates the law of reciprocal
proportions, Ratio in the number of atoms of H and O
combinig with one P is 3, i.e., `2 : 1`.