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Which of the following reactions is not ...

Which of the following reactions is not a redox reaction?

A

`Ca(OH)_2 + 2HCI rarr CaCl_2 + 2H_2O`

B

`BaCI_2 + MgSO_4 rarr BaSO_4 +MgCl_2`

C

`2S_2O_7- + 2H_2O rarr 4SO_(4)(2-) + 4H^(+)`

D

`Cu_2S + 2FeO rarr 2Cu + 2Fe + SO_2`

Text Solution

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The correct Answer is:
D
(d) In redox reaction oxidation and reduction take place side by side. `Cu_2S + 2FeO rarr 2Cu + 2Fe +SO_2`. O.N. of Cu changes from +1 to 0 (reduction) and O.N. of S changes from -2 to +4 (oxidation).
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DISHA PUBLICATION-REDOX REACTIONS-EXERCISE-2 : CONCEPT APPLICATOR
  1. When KMnO(4) acts as an oxidising agnet and ultimetely from MnO(4)^(2-...

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  2. The oxidation state of iodine in H(4)IO(6)^(-) is:

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  3. The reaction in which hydrogen peroxide acts as a reducting agent is .

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  4. The atomic number of an element is 22. The highest oxidation state exh...

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  5. Consider the following statements Reaction KIO(3) + 5Kl + 6HCl = 3...

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  6. The number of mole of KMnO(4) that will be needed to react completely ...

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  7. Which of the following is not a redox reaction ?

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  8. Which of the following reactions is not a redox reaction?

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  9. Equivalent weight of MnO(4)^(ɵ) in acidic neutral and basic media are ...

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  10. If equal volumes of 1 M KMnO(4) and 1M K(2)Cr(2)O(7) solutions are all...

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  11. Hydrazine reacts with KIO(3) in presence of HCl as : N(2)H(4)+IO(3)^...

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  12. The equivalent weight of iron in Fe(2)O would be:

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  13. E^(θ) values of some redox couples are given below. On the basis of th...

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  14. A solution contains Fe^(2+), Fe^(3+) and T^(-) ions. This solution was...

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  15. In the standardization of Na(2)S(2)O(3) using K(2)Cr(2)O(7) by iodomet...

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  16. Which of the following reactions do not involve oxidation reduction ? ...

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

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  18. Zn gives H(2) gas with H(2)SO(4) and HCl but not with HNO(3) because

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

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

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