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When zinc granule is dipped into copper ...

When zinc granule is dipped into copper sulphate solution, copper is precipitated because :

A

Oxidation of `Cu^(+2)`

B

Reduction of `Cu^(+2)`

C

Hydrolysis of `CuSO_(4)`

D

Ionization of `CuSO_(4)`

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-REDOX REACTIONS-ASSIGNMENT SECTION - A
  1. In the reaction 3Br(2)+6CO(3)^(2-)+3H(2)Orarr5Br^(ө)+BrO(3)^(ө)+6HCO...

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  2. In which reaction, there is change in oxidation number of N atom?

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  3. When zinc granule is dipped into copper sulphate solution, copper is p...

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  4. Which of the following reactions involve oxidation and reduction?

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  5. Which of the following involves the reduction of copper?

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  6. Which one of the following is the correct match?

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  7. The oxidation number of sulphur in H(2)S(2)O(8) is:

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  8. In which of the following compounds iron has lowest oxidation number?

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  9. Phosphorus has the oxidation state of +3 in

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  10. The brown ring complex compound is formulated as [Fe(H(2)O)(5)NO]SO(4)...

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  11. Oxidation number of Cr in CrO(5) is

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  12. In which of the following compounds , the oxidation number of iodine i...

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  13. Which reaction involves neither oxidation nor reduction?

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  14. In a chemical reaction, K(2)Cr(2)O(7)+xH(2)SO(4)+ySO(2) to K(2)SO(4)+ ...

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  15. What is the oxidation state of sodium in sodium amalgam (Na//Hg)?

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  16. Which of the following will not be oxidised by O(3) ?

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  17. In alkaline medium , KMnO(4) reacts as follows 2KMnO(4)+2KOH rarr 2K...

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  18. The equivalent weight of FeS(2) in the following reaction is FeS(2)+O(...

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  19. When SO(2) is passed inoto an acidified potassium dichromate soltion, ...

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  20. How many mole of FeSO(4) reacted with one mole of KMnO(4) in acidic me...

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