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The volume in litre of `CO_(2)` liberated at STP when 10g of 90% pure limestone is heated completely, is

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Correct Answer - d
`underset((100g))underset(1"mole")(CaCO_(3)) to underset("22.4 litre in STP")(CaO)+CO_(2)(g)`
`therefore 100g CaCO_(3)-=22.4L CO_(2) "At STP"`
`therefore "9g "CaCO_(3)=(22.4)/(100)xx9L CO_(2)"at STP"`
`"=2.016L "CO_(2)" at STP"`

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