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For decolourisation of 1 "mol of" KMnO(4...

For decolourisation of `1 "mol of" KMnO_(4)`, the moles of `H_(2)O_(2)` required is

A

`1//2`

B

`3//2`

C

`5//2`

D

`7//2`

Text Solution

Verified by Experts

The correct Answer is:
C
`2KMnO_(4)+3H_(2)SO_(4)rarrK_(2)SO_(4)+2MnSO_(4)+3H_(2)O+5[O]H_(2)O_(2)+OrarrH_(2)O+O_(2)xx5`
Thus 1 mole of acidified `KMnO_(4)` requires 5/2 moles of `H_(2)O_(2)` for decolourisation.
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DINESH PUBLICATION-REDOX REACTIONS-Revision Question
  1. The oxidation number of carbon in CH(2)Cl(2) is

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  2. The element which forms oxides in all oxidation states +1 to +5 is.

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  3. For decolourisation of 1 "mol of" KMnO(4), the moles of H(2)O(2) requi...

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  4. Among the properties (A) reducing(B) oxidising (C ) complexing the set...

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  5. The number of moles of KMnO(4) reduced by 1 "mol of" KI in alkaline me...

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  6. In the balanced chemical reaction IO(3)^(ө)+al^(ө)+bH^(ө)rarrcH(2)O+...

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  7. Which fo the following statements are correct concerning redox propret...

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  8. One mole of acidified K(2)Cr(2)O(7) in reaction with excess KI will li...

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  9. In the reaction, As(2)S(5)+xHNO(3)rarr5H(2)SO(4)+yNO(2)+2H(3)AsO(4)+12...

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  10. Oxidation numbers of two Cl atoms in belaching powder, CaOCl(2), are

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  11. Cr(2)O(7)^(2-)overset(H^(+))rarrCr^(3+), Eq. wt. of Cr(2)O(7)^(2-) is ...

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  12. KMnO(4) is a strong oxidising agent in acidic medium. To provide acidi...

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  13. Which of the following is a set of reducing agents?

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  14. Which of the following is a redox reaction ?

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  15. Oxidation number if iodine in IO(3)^(-), IO(4)^(-),KI and I(2) respect...

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  16. MnO(4)^(-) ions are reduced in acidic conditions to Mn^(2+) ions where...

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  17. Which of the following reactions involve disproportionation ?

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  18. The reaction P(4)+3NaOH+3H(2)Orarr2NaH(2)PO(2)+PH(3) is an example of

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  19. Cr(2)O(5) has structure as shown The oxidation number of chromium...

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  20. The oxidation number of S in S(8),S(2)F(2), and H(2)S, respectively, a...

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