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Which of the following reactions involve...

Which of the following reactions involves oxidation-reaction?

A

`H_(2)+Br_(2) rarr 2HBr`

B

`HBr+AgNO_(3) rarr AgBr+HNO_(3)`

C

`NaBr+HCl rarr NaCl+HBr`

D

`2NaOH+H_(2)SO_(4) rarr NaSO_(4)+2H_(2)O`

Text Solution

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The correct Answer is:
A
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A2Z-REDOX REACTIONS-Section D - Chapter End Test
  1. Which of the following reactions involves oxidation-reaction?

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  2. For H(3)PO(3) and H(3)PO(4) the correct choice is

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  3. The oxidation number of sulphur in H(2)S(2)O(7) and iron in K(4)Fe(CN)...

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  4. One mole of N(2)H(4) loses ten moles of electrons to form a new compou...

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  5. In the compound YBa(2)Cu(3)O(7) which shows superconductivity, what is...

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  6. The oxidation number of S in S(8),S(2)F(2), and H(2)S, respectively, a...

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  7. Which one of the following reactions is not an example of redox reacti...

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  8. For the reaction, C+O(2)rarrCO(2), DeltaH=-393 J 2Zn+O(2) rarr 2ZnO,...

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  9. In the reaction B(2)H(6)+2KOH+2Xrarr 2Y+6H(2), X and Y are respectivel...

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  10. In a balanced equation H(2)SO(4)+xHI rarr H(2)S+YI(2)+zH(2)O, the valu...

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  11. MnO(4)^(2-) (1 mole) in neutral aqueous medium is disproportionate to

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  12. The conductivity of a saturated solution of BaSO4 is 3. 06 xx 10^(-6)...

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  13. H(2)O(2) reduces K(4)Fe(CN)(6)

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  14. When sodium metal is dissolved in liquid ammonia, blue colour solution...

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  15. Which of the following is redox reaction ?

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  16. In which of the following reactions H(2)O(2) is a reducing agent?

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  17. Which is the best description of the behaviour of bromine in the react...

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  18. Which of the following substances acts as an oxidising as well as a re...

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  19. When K(2)Cr(2)O(7) is converted to K(2)CrO(4), the change in the oxida...

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  20. Oxidation state of chlorine in perchloric acid is

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  21. The oxidation number of S in H(2)S(2)O(8) is

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