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Which one of the following is a redox re...

Which one of the following is a redox reaction ?

A

`H_(2) + Br_(2) rarr2HBr`

B

`2NaCl+H_(2)SO_(4) rarr Na_(2) SO_(4) + 2HCl`

C

`HCl + AgNO_(3) rarr AgCl + HNO_(3)`

D

`NaOH + HCl rarr NaCl + H_(2)O`

Text Solution

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The correct Answer is:
A
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MOTION-OXIDATION & REDUCTION -OXIDATION NUMBER ( EXERCISE -1)
  1. The oxidation number of carbon in CH(2)Cl(2) is

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  2. The oxidation number of P is +3 in -

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  3. Which one of the following is a redox reaction ?

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  4. Fluorine does not show positive oxidation state due to the -

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  5. According to classical concept, oxidation involves

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  6. According to modern concept, oxidation is -

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  7. Oxidation takes place with -

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  8. The reaction, 2K(2)MnO(4) + Cl(2) rarr 2KMnO(4) + 2KCl is an example o...

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  9. In the reaction 3Br(2) + 6CO(3)^(2-) + 3H(2)O to 5Br^(-) + 2BrO(3)^(...

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  10. The oxidation number of carbon in C(12) H(22) O(11) is

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  11. When SO(2) is passed through acidified K(2)Cr(2)O(7) solution, Cr(2)(S...

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  12. In the reaction 2Na(2)S(2)O(3)+I(2) rarr Na(2)S(4)O(6)+2NaI, the oxida...

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  13. White P reacts with caustic soda (NaOH) forming PH(3) and NaH(2)PO(2)....

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  14. The reaction Co(s) + Cu^(2+)(aq) rarr Co^(2+)(aq) + Cu(s) is-

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  15. A redox reaction is:

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  16. A,B and C are three elements forming part of a compound in oxidation s...

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  17. The conversion of sugar C(12)H(22)O(11) to CO(2) is :

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  18. Oxidation is defined as-

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

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  20. In acidic medium, reaction MnO(4)^(-) hArr Mn^(2+) is an example of -

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