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JEE Main 202126 AugustMorning Shift
Exam
JEE Main
Year
2021
Date
26 August
Shift
Morning Shift
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2021 · 26 August · Morning Shift · Chemistry · s Block Elements

What are the products formed in sequence when excess of CO _ 2 is...

What are the products formed in sequence when excess of CO2{CO}_{2} is passed in slaked lime?

Options

  1. ACaO,CaCO3CaO, {CaCO}_{3}
  2. BCa(HCO3)2′CaCO3Ca\left({HCO}_{3}\right){2}^{'}{CaCO}_{3}
  3. C{CaCO}_{3}, Ca{\left({HCO}_{3}\right)}_{2}
  4. DCaO, Ca{\left({HCO}_{3}\right)}_{2}

Correct answer

C. {CaCO}_{3}, Ca{\left({HCO}_{3}\right)}_{2}

Step-by-step solution

Slaked lime is Ca(OH)2Ca{( 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 \mathop{\to}_{{CO}_{2}}^{Pass}CaC{O}_{3} ↓\mathop{\to}_{}^{\text{Prolonged passage of}{CO}_{2}}Ca{\left({HCO}_{3}\right)}_{2}

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