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The reaction 3ClO^(-)(aq)rarrClO(3)^(-)(...

The reaction `3ClO^(-)(aq)rarrClO_(3)^(-)(aq)+2Cl^(-)(aq)` an example of :

A

oxidation reaction

B

reduction reaction

C

disproportionation reaction

D

decomposition reaction

Text Solution

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The correct Answer is:
To determine the type of reaction represented by the equation: \[ 3 \text{ClO}^-(aq) \rightarrow \text{ClO}_3^-(aq) + 2 \text{Cl}^-(aq) \] we will analyze the oxidation states of chlorine in the reactants and products. ### Step-by-Step Solution: 1. **Identify the Reactants and Products:** - Reactants: \( 3 \text{ClO}^- \) - Products: \( \text{ClO}_3^- + 2 \text{Cl}^- \) 2. **Determine the Oxidation States:** - In \( \text{ClO}^- \): - Chlorine (Cl) has an oxidation state of +1 (since O is -2 and the overall charge is -1). - In \( \text{ClO}_3^- \): - Chlorine (Cl) has an oxidation state of +5 (since O is -2, and there are three O atoms contributing -6, making the total +5). - In \( \text{Cl}^- \): - Chlorine (Cl) has an oxidation state of -1. 3. **Analyze the Changes in Oxidation States:** - From \( \text{ClO}^- \) to \( \text{ClO}_3^- \): - Chlorine changes from +1 to +5 (oxidation). - From \( \text{ClO}^- \) to \( \text{Cl}^- \): - Chlorine changes from +1 to -1 (reduction). 4. **Classify the Reaction:** - Since chlorine is both oxidized (from +1 to +5) and reduced (from +1 to -1) in the same reaction, this is a classic example of a **disproportionation reaction**. 5. **Final Answer:** - The reaction \( 3 \text{ClO}^- \rightarrow \text{ClO}_3^- + 2 \text{Cl}^- \) is an example of a **disproportionation reaction**.
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Knowledge Check

  • Which of the following expression is correct for the rate of reaction given below ? 5Br^(-)(aq) + BrO_(3)^(-)(aq) + 6H^(+) (aq) to 3Br_(2) (aq) + 3H_(2) O(l) .

    A
    `(Delta[Br^(-)])/(Delta t) = 5 (Delta[H^(+)])/(Delta)`
    B
    `(Delta[Br^(-)])/(Delta t) = (6)/(5) (Delta[H^(+)])/(Delta t)`
    C
    `(Delta[Br^(-)])/(Delta t) = (5)/(6) (Delta [H^(+)])/(Delta t)`
    D
    `(Delta[Br^(-)])/(Delta t) = 6 (Delta[H^(+)])/(Delta t)`

  • Which of the following expressions is correct for the rate of reaction given below? 5 Br^(-) (aq) +BrO_(3)^(-) (aq) + 6H^(+) (aq) to 3Br_2(aq) + 2H_2 O(l)

    A
    `(Delta [Br^(-)])/(Delta t)=5 ( Delta [H^(+)])/( Delta t)`
    B
    `(Delta [Br^(-)])/(Delta t)=6/5 ( Delta [H^(+)])/( Delta t)`
    C
    `(Delta [Br^(-)])/(Delta t)=5/6 ( Delta [H^(+)])/( Delta t)`
    D
    `(Delta [Br^(-)])/(Delta t)=6 ( Delta [H^(+)])/( Delta t)`

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