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Why is phosphate introduced in the last step of the scheme above? Select the correct answer below: Only alkaline earth metal cations form insoluble phosphates. A large number of cations form insoluble phosphates. Phosphate is a selective reagent in qualitative analysis. Phosphate forms soluble compounds with most metal cations.

Why is phosphate introduced in the last step of the scheme above? Select the correct answer below: Only alkaline earth metal cations form insoluble phosphates. A large number of cations form insoluble phosphates. Phosphate is a selective reagent in qualitative analysis. Phosphate forms soluble compounds with most metal cations. Why is phosphate introduced in the last step of the scheme above? Select the correct answer below: Only alkaline earth metal cations form insoluble phosphates. A large number of cations form insoluble phosphates. Phosphate is a selective reagent in qualitative analysis. Phosphate forms soluble compounds with most metal cations.

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Why is phosphate introduced in the last step of the scheme above?
Select the correct answer below:
Only alkaline earth metal cations form insoluble phosphates.
A large number of cations form insoluble phosphates.
Phosphate is a selective reagent in qualitative analysis.
Phosphate forms soluble compounds with most metal cations.

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