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What quantity of limestone (CaCO3) on heating will give 56 kg of CaO ?

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What quantity of limestone (CaCO3) on heating will give 56 kg of CaO ?

(a) 1000 kg 

(b) 56 kg

(c) 44 kg

(d) 100 kg

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Correct option is (d) 100 kg

CaCO3 → CaO + CO2

Weight of CaCO3 required = \(\frac{100 \times 56}{56}\) = 100 kg

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