1.

Which of the following sets of compounds correctly illustrate the law of reciprocal proportions ? (1) P_2O_3. PH_3, H_2O (2) P_2O_5, PH_3, H_2O (3) N_2O_5, NH_3, H_2O (4) N_2O, NH_3, H_2O (5) NO_2, NH_3, H_2O

Answer»

`N_(2)O_(5),NH_(3),H_(2)O`
`N_(2)O, NH_(3),H_(2)O`
`P_(2)O_(3),PH_(3),H_(2)O`
`CH_(4),H_(2)O,CO_(2)`

Answer :C::D


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