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The reaction of aqueous KMnO(4) with H(2...

The reaction of aqueous `KMnO_(4)` with `H_(2)O_(2)` i acidic conditions gives :

A

`Mn^(4+)` and `O_(2)`

B

`Mn^(2+)` and `O_(2)`

C

`Mn^(2+)` and `O_(3)`

D

`Mn^(4+) and MnO_(2)`

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The correct Answer is:
To solve the question regarding the reaction of aqueous potassium permanganate (KMnO₄) with hydrogen peroxide (H₂O₂) under acidic conditions, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactants and Conditions**: - The reactants are potassium permanganate (KMnO₄) and hydrogen peroxide (H₂O₂). - The reaction occurs in acidic conditions, typically using sulfuric acid (H₂SO₄) as the acid. 2. **Write the Balanced Chemical Equation**: - The balanced equation for the reaction can be written as follows: \[ 2 \text{KMnO}_4 + 5 \text{H}_2\text{O}_2 + 6 \text{H}^+ \rightarrow 2 \text{Mn}^{2+} + 5 \text{O}_2 + 8 \text{H}_2\text{O} \] - Here, potassium sulfate (K₂SO₄) is also formed, but for the purpose of this question, we focus on manganese and oxygen products. 3. **Determine the Oxidation States**: - In KMnO₄, manganese (Mn) has an oxidation state of +7. - In H₂O₂, the oxidation state of oxygen is -1. - In the products, Mn is reduced to +2 and oxygen is released as O₂ (oxidation state 0). 4. **Identify the Changes in Oxidation States**: - Mn changes from +7 in KMnO₄ to +2 in Mn²⁺, indicating a reduction. - Oxygen in H₂O₂ changes from -1 to 0, indicating oxidation. 5. **Conclusion**: - The products of the reaction are manganese ions (Mn²⁺) and molecular oxygen (O₂). - Therefore, the correct answer to the question is **Mn²⁺ and O₂**. ### Final Answer: The reaction of aqueous KMnO₄ with H₂O₂ in acidic conditions gives **Mn²⁺ and O₂**. ---

To solve the question regarding the reaction of aqueous potassium permanganate (KMnO₄) with hydrogen peroxide (H₂O₂) under acidic conditions, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactants and Conditions**: - The reactants are potassium permanganate (KMnO₄) and hydrogen peroxide (H₂O₂). - The reaction occurs in acidic conditions, typically using sulfuric acid (H₂SO₄) as the acid. ...
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DISHA PUBLICATION-THE D- AND F- BLOCK ELEMENTS -EXERCISE - 1 CONCEPT BUILDER (TOPIC 2 : COMPOUNDS OF TRANSITION METALS)
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  2. When an aqueous solution of copper (II) sulphate is saturated with amm...

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  4. Colourless solutions of the following four salts are placed separately...

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  5. The correct statements of the following

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  6. Among the following, the compound that is both paramagnetic and colour...

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  7. K(2)Cr(2)O(7) on heating with aqueous NaOH gives

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  8. What would happen when a solution of potassium chromate is treated wit...

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  9. The oxidation state of chromium in the final product formed by the rea...

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  10. The final products formed on the addition of KI to copper sulphate sol...

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  11. KMnO(4) (acidic / alkaline ) is not decolurised by

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  12. Acidified K(2)Cr(2)O(7) solution turns green when NasO(3) is added to ...

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  13. KMnO4 can be prepared fromK2MnO4 as per the reaction: The reaction ...

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  14. The pair of compounds that can exist together is:

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  15. In acidic medium, H(2)O(2) changes Cr(2)O(7)^(-2) to CrO(5) which has ...

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  16. The reaction of aqueous KMnO(4) with H(2)O(2) i acidic conditions give...

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  17. Which of the following processes does not involve oxidation of iron ?

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  18. Assuming complete ionization , same moles of which of the following co...

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  19. Which one of the following statements is correct when SO(2) is passed ...

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  20. Name the gas that can readily decolourise acidified KMnO(4) solution:

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