Chlorine gas reacts with red hot calcium oxide to give

Options

A. Bleaching powder and dichlorine monoxide
B. Bleaching powder and water
C. Calcium chloride and chlorine dioxide
D. Calcium chloride and oxygen

Explanation

To solve the question of what products are formed when chlorine gas reacts with red-hot calcium oxide, we can follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are:
- Chlorine gas (Cl₂)
- Red-hot calcium oxide (CaO)

### Step 2: Understand the Reaction Conditions
The reaction occurs at a high temperature, specifically around 700 degrees Celsius. This high temperature is crucial as it facilitates the reaction between chlorine gas and calcium oxide.

### Step 3: Write the Balanced Chemical Equation
When chlorine gas reacts with red-hot calcium oxide, the products formed are calcium chloride (CaCl₂) and oxygen gas (O₂). The balanced chemical equation for this reaction can be written as:
\[ 2 \text{Cl}_2 + \text{CaO} \rightarrow \text{CaCl}_2 + \text{O}_2 \]

### Step 4: Identify the Products
From the balanced equation, we can see that the products of the reaction are:
- Calcium chloride (CaCl₂)
- Oxygen gas (O₂)

### Step 5: Conclusion
Thus, when chlorine gas reacts with red-hot calcium oxide, the final products are calcium chloride and oxygen.

### Final Answer
The products formed are calcium chloride (CaCl₂) and oxygen (O₂).

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