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The number of electrons lost in the foll...

The number of electrons lost in the following change is
`Fe+H_(2)OrarrFe_(3)O_(4)+H_(2)`

A

2

B

4

C

6

D

8

Text Solution

Verified by Experts

`3 overset(0)(Fe)+8e^(-) to (Fe^(8//3+))_(3)`
`2H^(+) to overset(0)H_(2)+2e^(-)] xx 4`
`3Fe+4H_(2)O to Fe_(3)O_(4)+4H_(2)O`
Total number of electrons lost or gained is 8
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NARAYNA-REDOX REACTION-Exercise -4
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  2. The oxidation state of A, B, and C in a compound are +2, +5, and -2, r...

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  3. The number of electrons lost in the following change is Fe+H(2)Orarr...

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  4. The oxidation number of Pt in [Pt (C(2)H(4))Cl(3))"]"^(ө) is

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  5. The oxidation number of P in Mg(2)P(2)O(7) is

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  6. The oxidation number of phosphorus in PO(4)^(3-), P(4)O(10), and P(2)O...

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  7. which of the following leads to redox reaction ?

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  8. The oxidation number of sulphur in Na2S4O6 is .

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

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  10. When iron is rusted, it is

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  11. An element that never has a positive oxidation state in any of its com...

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  12. Starch iodide paper is used to test for the presence of

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  13. Which of the following acids possesses oxidising, reducing, and comple...

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  14. In the reaction 8Al+3Fe(3)O(4)rarr 4Al(2)O(3)+9Fe the number of el...

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  15. Which of the following examples does not represent disproportionation ...

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  16. Which of the following statements is//are correct

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  17. The oxide which cannot act as reducing agent is

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  18. The coordination number and oxidation number of Cr in K(3)[Cr(C(2)O(4)...

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  19. Which of the following reactions does not involve either oxidation or ...

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  20. In which of the following processess is nitrogen oxidised ?

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