JEE Main202126 Aug 2021Morning ShiftChemistrys Block ElementsActual

What are the products formed in sequence when excess of CO 2 is passed in slaked lime?

Options

ACaO , CaCO 3
BCa HCO 3 2 ' CaCO 3
CCaCO 3 , Ca HCO 3 2
DCaO , Ca HCO 3 2

Correct answer

C. CaCO 3 , Ca HCO 3 2

Step-by-step solution

Slaked lime is Ca ( OH ) 2 , when it pass through carbon dioxide it form calcium carbonate, but in presence of excess carbon dioxide it forms calcium bicarbonate. Slaked lime → CO 2 Pass CaC O 3 ↓ → Prolonged passage of   CO 2 Ca HCO 3 2

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