The molar mass of `CaCO_(3)` is 100 g. The maximum amount of carbon dioxide that can be liberated on heating 25 g of `CaCO_(3)` is -

Options

A. 11 g
B. 55 g
C. 22 g
D. 2.2 g

Answer

A

Explanation

`25 g CaCO_(3)rArr(25)/(100)=(1)/(4)` mole of `CaCO_(3)`
`CaCO_(3)rarrCaO +CO_(2)`
`:' ` 1 mole `CaCO_(3)` produce 1 mole `CO_(2)`
`:. (1)/(4)` mole `CaCO_(3)` produce `(1)/(4)` mole `CO_(2)`
and `(1)/(4)` mole `CO_(2)=(1)/(4)xx44`g of `CO_(2)=11g`