One of the following combinations illustrate law of reciprocal proport

1.	One of the following combinations illustrate law of reciprocal proportions:
Answer» <P>`N_(2)O_(3), N_(2)O_(4), N_(2)O_(5)` NaCl, NaBr, NAI `CS_(2), CO_(2), SO_(2)` `PH_(3), P_(2)O_(3), P_(2)O_(5)` ANSWER :C

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