JEE Main20254 Apr 2025Evening ShiftChemistrySome Basic Concepts of ChemistryActual

The amount of calcium oxide produced on heating 150 kg limestone ( 75 % pure) is ______ kg. (Nearest integer) Given : Molar mass (in g mol ⁻¹ ) of Ca-40, O-16, C-12

Correct answer

Step-by-step solution

aligned & CaCO ₃ CaO + CO ₂ & mass of CaCO ₃= 150 75 100 =112.5 ~kg & =112500 ~g & n _ CaCO ₃ =1125 & So moles of CaO =1125 & mass of CaO = 1125 56 1000 =63 ~kg & Correct answer 63 aligned

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