1.

Addition of solution of oxalate to an aqueous solution of mixture of Ba^(2+), Sr^(2+) and Ca^(2+) will precipitate :

Answer»

`CA^(2+)`
`Ca^(2+)` and `SR^(2+)`
`Ba^(2+)` and `Sr^(2+)`
All the three

Solution :Oxalates of these metals are INSOLUTION


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