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Which of the following is metal displace...

Which of the following is metal displacement reaction 

A

`Zn + CuSO_(4)rarrZnSO_(4) + Cu`

B

` 2Na + 2H_(2)O rarr2NaOH +H_(2)`

C

`Ca+2H_(2)O rarr Ca(OH)_(2)+H_2`

D

`2HgO rarr 2Hg+O_2`

Text Solution

Verified by Experts

The correct Answer is:
A
Reactions involved in a metal replaced by another metal known as metal displacement reactions.
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AAKASH SERIES-REDOX REACTIONS-ADDITIONAL PRACTICE EXERCISE (LEVEL - I (MAIN)) (Straight Objective Type Questions)
  1. The reaction is Decomposition but it's not redox reaction

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  2. Which of the following is redox reaction

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  3. Which of the following is metal displacement reaction

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  4. Which of the following is a redox reaction?

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  5. Which of the following is not an example of disproportionation reactio...

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  6. In the reaction 3Mg+N(2)rarrMg(3)N(2)

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  7. Which one of the halogn is prepared by only electrolysis method

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  8. Which of the following statement is correct for a galvanic cell?

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  9. In Cu - Zn cell

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  10. In a electrochemical cell

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  11. The electrode potential of an electrode is

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  12. Daniel cell is shown as

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  13. Which of the following metals will not react with solution of CuSO4 ?

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  14. Equal quantities of zinc are separately treated with caustic soda solu...

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  15. The oxidation number of ..V.. in Rb(4) Na[HV(10)O(28)] is

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  16. A solution of 0.1M KMnO4 is used for the reaction S(2)O(3)^(-2) + 2 M...

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  17. 0.5 g mixture of oxalic acid (H(2)C(2)O4) and some sodium oxalate (Na...

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  18. A solution contains mixture of H(2)SO(4), H(2)C(2)O4 20 ml of this so...

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  19. 100 ml of 0.1M aqueous ferric alum solution is completely reduced with...

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  20. What volume of 0.2 M Ba( MnO(4))2 solution is required for complete o...

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