Q.
A solution of sulphuric acid with calcium carbonate on concentration gives
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a
CaSO4
b
CaSO4.H2O
c
CaSO4.2H2O
d
2CaSO4.2H2O
answer is C.
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Detailed Solution
CaCO3+H2SO4+H2O → CaSO4 2H2O +CO2
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