Chemistry · Group 13 to Group 18 Elements
Chlorine gas reacts with red hot calcium oxide to give:
Chlorine gas reacts with red hot calcium oxide to give:
- A. bleaching powder and dichlorine monoxide
- B. bleaching powder and water
- C. calcium chloride and chlorine dioxide
- D. calcium chloride and oxygen
Step-by-step solution
When chlorine gas is passed over red hot calcium oxide (CaO), they react to form calcium chloride (CaCl2) and oxygen (O2). The balanced chemical equation is 2CaO + 2Cl2 → 2CaCl2 + O2. This is a known industrial reaction. The other options are incorrect: bleaching powder is typically produced from chlorine and slaked lime (Ca(OH)2), not CaO; and chlorine dioxide is not a product of this reaction.
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