Predict product(s) in the following reaction,
`Cl_(2)+OH^(-) overset(hot)to`?

Options

A. `Cl^(-)`
B. `ClO_(2)`
C. `OC l^(-)`
D. `ClO_(3)^(-)`

Answer

To predict the products of the reaction between chlorine gas (Cl₂) and hydroxide ions (OH⁻) when heated, we can follow these steps:

### Step 1: Write the Reactants
The reactants in this reaction are chlorine gas (Cl₂) and hydroxide ions (OH⁻).

### Step 2: Identify the Reaction Type
This reaction is a redox reaction where chlorine is reduced and hydroxide ions are oxidized. Chlorine can react with hydroxide ions to form various products depending on the conditions.

### Step 3: Determine the Products
When chlorine reacts with hydroxide ions, the primary products formed are:
- Chloride ion (Cl⁻)
- Water (H₂O)
- Chlorate ion (ClO₃⁻)

### Step 4: Balance the Reaction
To balance the reaction, we need to ensure that the number of atoms for each element is the same on both sides of the equation. The balanced equation for this reaction is:
\[ 3Cl_2 + 6OH^- \rightarrow 5Cl^- + ClO_3^- + 3H_2O \]

### Step 5: Identify the Correct Options
From the balanced equation, we can see that the products include:
- Chloride ion (Cl⁻)
- Chlorate ion (ClO₃⁻)
- Water (H₂O)

Now, let's analyze the options provided:
- A: Chloride anion (Cl⁻) - This is formed in the reaction.
- B: Chlorine dioxide (ClO₂) - This is not formed in the reaction.
- C: Hypochlorite anion (OCl⁻) - This is not formed in the reaction.
- D: Chloride anion (Cl⁻) - This is formed in the reaction.

### Conclusion
The correct products of the reaction are the chloride anion (Cl⁻) and the chlorate ion (ClO₃⁻). Therefore, the correct options are A (chloride anion) and D (chloride anion).

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