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Which of the following is a redox reacti...

Which of the following is a redox reaction?

A

`2CuSO_4 +4KI rarr Cu_2I_2 +2K_2SO_4 +I_2`

B

`SO_2 +H_2O rarr H_2SO_3`

C

`Na_2SO_4 +BaCl_2rarrBaSO_4+2NaCl`

D

`CuSO_4 +4NH_3rarr[Cu(NH_3)_4]SO_4`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Which fo the following is a redox reaction ?

    A
    `Na_2SO_4 + BaCl_2 rarr BaSO_4 + 2NaCl`
    B
    ` SO_2 + H_2O rarr H_2SO_3`
    C
    `2 CuSO_4 + 4Kl rarr 2Cu l +2K_2SO_4`+I_2
    D
    ` CuSO_4 + 4NH_3 rarr [Cu(NH_3)_4]SO_4`

  • Which of the following is are redox reaction(s) ?

    A
    `BaO_(2)+H_(2)SO_(4)toBaSO_(4)+H_(2)O_(2)`
    B
    `2BaO+O_(2)to2BaO_(2)`
    C
    `2kClO_(3)to2kCl+3O_(2)`
    D
    `SO_(2)+2H_(2)Sto2H_(2)O+3S`

  • Which of the following is redox reaction?

    A
    1-Butyne `underset(BaSO_(4))overset(Pd//C-H_(2))to`
    B
    2-Butyne `overset(NaNH_(2))to`
    C
    1-Butyne `overset(Alc.KOH)to`
    D
    `HC-=CH underset("Copper tube")overset("red hot")to`
    • MODERN PUBLICATION-REDOX REACTIONS -COMPETITION FILE (Objective Questions) (B. MULTIPLE CHOICE QUESTIONS)
    1. Which of the following is a redox reaction?

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

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

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    4. Number of moles of MnO(4)^(-) required to oxidise one mole of ferrous ...

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    5. On the basis of the folwing E^@ values, the strongest oxidizing agent ...

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    6. In the redox reaction, x KMnO(4) + NH(3) rarr y KNO(3) + MnO(2) + MnO(...

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    7. Which of the following have been arranged in decreasing of oxidation n...

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    8. The average oxidation state of sulphur in Na2S4O6 is

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    9. Standard electrode potential of three metal X, Y and Z are -1.2 V, +0....

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    10. In which of the following compounds,nitrogen exhibits highest oxidatio...

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

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

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    13. Choose the disproportionation reaction among the following redox react...

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

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    15. Assuming complete ionization, same moles of which of the following com...

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    16. For the redox reaction MnO(4)^(ө)+C(2)O(4)^(2-)+H^(o+)rarrMn^(2+)+CO...

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    17. The correct structure of tribromooctaoxide.

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

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    19. Consider the following E^o values : E^o Fe^(3+)//FE^(2+)o = + 0.77 ...

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    20. In a cell that utilizes the reactions. Zn(s) + 2H^(+) (aq) rightarro...

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