EasyChemistry1
+4 / -1
Calculate the weight of lime (CaO) obtained by heating 200 kg of 95% pure lime stone (CaCO₃)
A
14.4 kg
B
155.4 kg
C
212.8 kg
D
106.4 kg
Explanation
100 kg impure sample has pure CaCO₃ = 95 kg
200 kg impure sample has pure CaCO₃ = =190 kg.
CaCO₃ → CaO + CO₂
100 kg CaCO₃ gives CaO = 56 kg.
190 kg CaCO₃ gives CaO = = 106.4 kg
More from JEE Main Mock -1 Chemistry
Easy
How many moles of potassium chlorate to be heated to produce 11.2 litre oxygen -
EasyThe density of O₂ at NTP is 1.429g / litre. Calculate the standard molar volume of gas-
EasyCalculate the mass in gm of 2g atom of Mg-
EasyDensity of a 2.05 M solution of acetic acid in water is 1.02 g mL⁻¹. The molality of the solution is
Practice Chemistry1 Exams
Full-length mock tests with detailed analytics, rank, and percentile.
Browse Exams