Question

. Which one of the following set of compounds correctly illustrate the law of reciprocal proportion
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a) P2O3, PH3, H2O b) P2O5, PH3, H2O c) N2O5, NH3, H2O d) N2O, NH3, H2O

Answer 1

Answer:

a) P2O3, PH3, H2O correctly represents law of reciprocal proportions.

Answer 2

Answer:

a

Explanation:

The ratio of phosphorus combines with oxygen

p2 : O3 = 62 :49 = 31:24

The ratio of phosphorus combines with hydrogen

P : H3 = 13:3

The ratio of hydrogen combines with oxygen

H2 : O = 2: 16 = 1:8

Now, Hydrogen and oxygen combines with phosphorus

3 : 24 = 1:8

1:8 = 1:8

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