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Valency and Oxidation Number

The valency o...

Question

The valency of ${P O}_{4}$ ion is ......... times the valency of $N .$

A

1

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B

2

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C

3

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D

4

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Solution

The correct option is B 1
The valency of ${P O}_{4}$ ion is $- 3$ and it is equal to valency of $N .$

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