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A 96 gm mixture containing CaCO(3) "and"...

A 96 gm mixture containing `CaCO_(3) "and" MgCO_(3)` on heating produces a gas which dissolves in 1 litre of water to form 1 `M H_(2)CO_(3)` solution. Mole ratio of `CaCO_(3) "and" MgCO_(3)` in original mixture is:

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