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The chemical that undergoes self oxidati...

The chemical that undergoes self oxidation and self reduction in the same reaction is

A

benzyl alcohol

B

acetone

C

formaldehyde

D

acetic acid

Text Solution

Verified by Experts

The correct Answer is:
C
Formaldehyde (HCHO) is reduced to `CH_(3)OH` and is also oxidised to HCOOH in Cannizzaro's reaction in the presence of an alkali (NaOH solution)-disproportionation.
`2HCHO+NaOH(5%)rarrCH_(3)OH+HCOONa`
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DINESH PUBLICATION-REDOX REACTIONS-Revision Question
  1. The number of moles of K(2)Cr(2)O(7) reduced by 1 mol of Sn^(2+) ions ...

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  2. During nitration of benzene withnitrating mixture, HNO(3) acts as

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  3. The chemical that undergoes self oxidation and self reduction in the s...

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  4. The reaction in which hydrogen peroxide acts as a reducting agent is .

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  5. The set of numerical coefficients that balances the chemical equation ...

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  6. The oxidation state of sulphur in Na(2)S(4)O(6) is

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  7. The values of X, Y and Zs in the reaction are repectively: XMnO(4)^(...

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  8. Which of the following is a redox reaction ?

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  9. When KMnO(4) acts as an oxidising agent and ultimately from MnO(4)^(2-...

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  10. The oxidation number of Fe in K(4)[Fe(CN)(6)] is

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

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  12. The oxidation states of sulphur in the anions SO(3)^(2-), S(2)O(4)^(2-...

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

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  14. P(4)+NaOH+H(2)O rarr NaH(2)PO(3)+PH(3) is

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

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  16. How many mole of electrons are involved in the reduction of one mole o...

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  17. What is the oxidation number of chlorine in ClO(3)^(-) ?

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  18. In acidic medium, dichromate ion oxidizes ferrous ion to ferric ion. I...

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  19. In the reaction, KMnO(4) + 16 HCl rarr 5C1(2) + 2MnCl(2) + 2KCl + 8H...

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  20. Nitrogen shows different oxidation states in the range

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