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10g of a mixture of CaCO(3) and Na(2)CO(...

10g of a mixture of `CaCO_(3) and Na_(2)CO_(3)` on ignition suffered a loss in weight of 2.2g. The mass ratio of `CaCO_(3) and Na_(2)CO_(3)` is

A

`1:1`

B

`1:1.4`

C

`1.4:1`

D

`1.75:1`

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The correct Answer is:
A
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