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Hardness of Water and Treatment

Phosphide ion...

Question

Phosphide ion has electronic structure similar to that of :

A

Nitride ion

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B

Chloride ion

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C

Fluoride ion

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D

Sodium ion

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Solution

The correct option is B Chloride ion
Phosphide ion $(P^{3 -})$ has electronic structure similar to that of chloride ion $(C l^{-})$ i.e. 2,8,8.

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