Which amongst the following does not represent a polyatomic ion?
A
Carbonate
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B
Chloride
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C
Sulphate
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D
Phosphate
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Solution
The correct option is B Chloride A polyatomic ion is an ion that is composed of more than two atoms. IonFormulaCarbonateCO2−3ChlorideCl−SulphateSO2−4PhosphatePO3−4
Here, carbonate, sulphate and phosphate ions are polyatomic as they contain more than two atoms while chloride is a monoatomic ion.