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Which of the following reactions are dis...

Which of the following reactions are disproportionation reactions ?
(I) `Cu^(+)toCu^(2+)+Cu`
(II) `3MnO_4^(-)+4H^(+)to2MnO_4^(-)+MnO_2+2H_2O`
(III) `2KMnO_4 to K_2MnO_4+MnO_2+O_2`
(IV) `2MnO_4^(-)+3Mn^(2+)+2H_2Oto5MnO_2+4H^(+)`

A

(a), (c) and (d)

B

(a) and (d) only

C

(a) and (b) only

D

(d) (a), (b) and (c).

Text Solution

Verified by Experts

The correct Answer is:
C
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Which of the following reactions are disproportionation reactions? (A)" " Cu^(+)rarrCu^(2+)+Cu (B)" "3 MnO_(4)^(2-)+4H^(+)rarr2MnO_(4)^(-)+MnO_(2)+2H_(2)O (C )" "2KMnO_(4)rarrK_(2)MnO_(4)+MnO_(2)+O_(2) (D)" "2MnO_(4)^(-)+3Mn^(2+)+2H_(2)O rarr5MnO_(2)+4H^(+)

Which of the following reactions are disproportionation reactions? (A)" " Cu^(+)rarrCu^(2+)+Cu (B)" "3 MnO_(4)^(2-)+4H^(+)rarr2MnO_(4)^(-)+MnO_(2)+2H_(2)O (C )" "2KMnO_(4)rarrK_(2)MnO_(4)+MnO_(2)+O_(2) (D)" "2MnO_(4)^(-)+3Mn^(2+)+2H_(2)O rarr5MnO_(2)+4H^(+)

Write the disproportionate reaction of MnO_(4)^(2-) ?

The equation 3MnO_4^(2-)+4H^(+)to2MnO_4^(-)+MnO_2+2H_2O represents

K_(2)MnO_(4)+H^(+) to KMnO_(4)+MnO_(2)darr

K_(2)MnO_(4)+H^(+) to KMnO_(4)+MnO_(2)darr

MnO_(2)+2KOH+(1)/(2)O_(2) to K_(2)MnO_(4)+H_(2)O

Which of the following is/are correct about the redox reaction? MnO_(4)^(ɵ)+S_(2)O_(3)^(2-)+H^(o+)toMn^(+2)+S_(4)O_(6)^(2-)

MnO_(2)+2KOH+(1)/(2)O_(2) to K_(2)MnO_(4)+H(2)O

Arrange the following in the increasing order of oxidation state of Mn: (i) Mn^(2+) (ii) MnO_(2) (iii) KMnO_(4) (iv) K_(2)MnO_(4)

ICSE-REDOX REACTIONS (OXIDATION AND REDUCTION)-OBJECTIVE (MULTIPLE CHOICE) TYPE QUESTIONS (Choose the correct option in the following questions:)
  1. Which of the following is a redox decomposition reaction ?

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  2. Which of the following is not a disproportionation reaction ?

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  3. Balance the following equation by ion electron method in the acidic me...

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  4. Equivalent mass of C(2)O(4)^(2-) ion in the reaction, C(2)O(4)^(2-)t...

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  5. In the titration of FeSO(4) against KMnO(4) in acidic medium, one mole...

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  6. Calculate the oxidation number of the underlined atom in the following...

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  7. MnO(4)^(-) is a good oxidising agent in different mediums changing to ...

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  8. Oxidation number of Cl in CaOCl(2) (bleaching powder) is

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  9. The oxidation state of Cr in [Cr(NH(3))(4)Cl(2)]^(+) is

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

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  11. What products are expected from the disproportionation reaction of hyp...

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  12. Consider the following reaction, xMnO(4)^(-)+yC(2)O(4)^(2-)+zH^(+)to...

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  13. Oxidation states of P in H(4)P(2)O(5),H(4)P(2)O(6),H(4)P(2)O(7) respec...

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  14. A mixture of potassium chlorate, oxalic acid and sulphuric acid is hea...

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  15. In which of the following reactions H(2)O(2) acts as a reducing agent?...

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  16. The correct order of N-compounds in its decreasing order of oxidation ...

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  17. For the redox recation MnO(4)^(-)+C(2)O(4)^(2-)+H^(+)toMn^(2+)+CO(2)...

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  18. Which of the following reactions are disproportionation reactions ? ...

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  19. Arrange in the increasing order of oxidation state of nitrogen for fol...

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  20. In order to oxidise a mixture of one mole of each of FeC(2)O(4),Fe(2)...

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