UPSC NDA II 2025 General Ability Paper

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Question : 96 of 150

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The reaction that occurs on passing carbon dioxide gas through lime water is

CaCO₃ + H₂O + CO₂ → Ca(HCO₃)₂
Ca(OH)₂ + CO₂ → CaCO₃ + H₂O
CaO + CO₂ → CaCO₃
CaCl₂ + H₂O + CO₂ → CaCO₃ + 2HCl

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