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Standard X
Chemistry
Ionisation Energy
6.5 g of an i...
Question
6.5 g of an impure sample of limestone liberates2.2 g of CO2 on strong heating. The percentagepurity of CaCO3 in the sample is(1) 85.2%(2) 76.9%(3 72.5%(4)925%
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Q.
12.5
g of an impure sample of limestone on heating gives
4.4
g of carbon dioxide. The percentage purity of
C
a
C
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Q.
4 g of an impure sample of
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Q.
A sample of chalk contains clay as impurity. The clay impurity loses
11
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1.25
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Q.
A sample of
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