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Assertion (A): Ferrocyanide ion oxidises...

Assertion `(A)`: Ferrocyanide ion oxidises `H_2O_2` to `H_2O`.
Reason `(R)` : Oxidation product of `H_2O_2` is `O_2.`

A

If both (A) and (R) are correct and (R) is the correct explanation of (A).

B

If both (A) and (R) are correct but (R) is not the correct explanation of (A).

C

If (A) is correct, but (R) is incorrect.

D

If (A) is incorrect, but (R) is correct.

Text Solution

Verified by Experts

The correct Answer is:
D
`H_(2)O_(2)+2[Fe(CN)_(6)]^(3-)+overset(Theta)(O)Hto2H_(2)O+O_(2)+2[Fe(CN)_(6)]^(4-)`
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Knowledge Check

  • Assertion : Ferricyanide ion oxidises H_(2)O_(2) to H_(2)O . Reason : Oxidation product of H_(2)O_(2) is O_(2) .

    A
    If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
    B
    If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
    C
    If Assertion is True but the Reason is False.
    D
    If both Assertion & Reason are False.

  • Oxidation number of O in H_(2)O_(2) will be

    A
    `-2`
    B
    `-1`
    C
    `+1`
    D
    `+2`

  • Hydrogen peroxide ionises as H_2O_2 hArr H^+ + HO_2^- if pH of H_2O_2 is 5.7 at 25^@C , the ionic product of H_2O_2 is :

    A
    `2xx10^(-12)`
    B
    `4xx10^(-12)`
    C
    `1xx10^(-14)`
    D
    `1.4xx10^(-12)`
    • CENGAGE CHEMISTRY-HYDROGEN, WATER AND HYDROGEN PEROXIDE-Exercises (Assertion Reasoning)
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    5. Assertion (A): Hydrogen oxidises lithium to Li. Reason (R) : Hydroge...

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    6. Assertion (A): Pink coloured solution of potassium permanganate turns ...

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    7. Assertion (A): Electrolysis of hard water produces O2 and D2. Reason ...

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    8. Assertion (A): Colour of KMnO4 disappears when dihydrogen gas is bubbl...

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    9. Assertion (A): Concentration of H2O2 is expressed in volume. Reason ...

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    10. Assertion (A): Hardness of water is determined by titrating it with di...

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    11. Assertion (A): Temporary hardness in water is due to the presence of c...

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    12. Assertion (A): When blood is added to a solution of H2O2, the solution...

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    13. Assertion (A): Alkali metals form ionic hydrides. Reason (R) : Alkal...

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    14. Assertion (A): The process of adsorption of hydrogen on palladium is k...

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    15. Assertion (A): H2O is a linear molecule. Reason (R) : Oxygen is sp^3...

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