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Oxidation can be defined as the terms ...

Oxidation can be defined as the terms
(`I`) gain of electron and hydrogen
(`II`) gain of oxygen and loss of electron
(`III`) increase in oxidation number
(`IV`) decrease in oxidation number
Select the correct terms

A

`I` and `II`

B

`I` and `IV`

C

`I` and `III`

D

`II` and `III`

Text Solution

Verified by Experts

The correct Answer is:
D
`underset(0)(Zn) rarr underset(+2)(Zn^(2+))+2e^(-)`
`Zn+O rarr ZnO`
Oxidation number increases, oxygen gained and loss of electrons is oxidation.
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A2Z-REDOX REACTIONS-Section D - Chapter End Test
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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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  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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  18. Which of the following substances acts as an oxidising as well as a re...

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