Q.

The mass of CO2 obtained when 2g of pure limestone is heated

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a

44 g

b

0.88 g

c

0.22 g

d

8.8 g

answer is C.

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Detailed Solution

CaCO3CaO+CO2

100g of CaCO3=44g of CO2

2g of CaCO3=? of CO2

=2100×44

=2225=0.88g.

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