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One litre of a saturated solution of CaCO3 is evaporated to dryness due to which 7.0 mg of residue is left. The solubility product for CaCO3 is

(A) 4.9 x 10-8 

(B) 4.9 x 10-5

(C) 4.9 x 10-9

(D) 4.9 x 10-7

1 Answer

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Best answer

Correct option (C) 4.9 x 10-9

Explanation : 

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