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Which of the following reactions is (are...

Which of the following reactions is (are) redox reactions ?

A

`6CO_(2)+6H_(2)O overset("Sun light")(rarr) C_(6)H_(12)O_(6)+6O_(2)`

B

`KCN +AgCN rarr K[Ag(CN)_(2)]`

C

`Zn +2HCl rarr ZnCl_(2)+H_(2)`

D

`BaCl_(2)+H_(2)SO_(4) rarr BaSO_(4)+2HCl`

Text Solution

Verified by Experts

The correct Answer is:
A, C
Reaction which involves change in O.N of atoms is a redox reaction.
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DINESH PUBLICATION-REDOX REACTIONS-Selected Straight
  1. Which of the following reactions is (are) not redox reaction (s) ?

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  2. Which of the following act both as an oxidising as well as reducing ag...

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  3. Which of the following reactions is (are) redox reactions ?

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  4. A reducing agent in a redox reaction undergoes

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  5. When Cl(2) is passed through NaOH in cold, the oxidation number of Cl ...

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  6. Oxidation number of carbon is correctly given for

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  7. The oxidation state of Cr in CrO(5) is:

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  8. Oxidation number of sulphur in Na(2)S(2)O(3) is

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  9. The oxidation state of Fe in Fe(3)O(4) is :

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  10. Oxidation number of N and HN(3) is

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  11. Oxidation state of O in KO(2) is

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  12. Oxidation number of S in KCNS is

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  13. Oxidation numbers of Mn in K(2)MnO(4) and MnSO(4) are respectively

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  14. The oxidation number of C in CH(2)O is

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  15. The brown ring complex compound of iron is formulated as [Fe (H(2)O)(5...

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  16. Oxidation number of P in Ba(H(2)PO(2))(2) is

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  17. White P reacts with caustic soda, the products are PH(3) and NaH(2)PO(...

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  18. The oxidation states of the most electronegative elements in the produ...

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  19. For the redox reaction MnO(4)^(ө)+C(2)O(4)^(2-)+H^(o+)rarrMn^(2+)+CO...

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  20. In the reaction 3Br(2)+6CO(3)^(2-)+3H(2)Orarr5Br^(ө)+BrO(3)^(ө)+6HCO...

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