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Which of the following statements is//ar...

Which of the following statements is`//`are correct about the following reactions?
I. `C_(6)H_(12)O_(6)overset(H_(2)SO_(4)(conc))rarr6C+6H_(2)O`
II. `H_(2)SO(dil)+ZnCO_(3)rarrZn^(2+)+CO_(2)+SO_(4)^(2-)+H_(2)O`
III. `H_(2)SO_(4)(dil)+ZnrarrZn^(2+)+H_(2)+SO_(4)^(2-)`
IV. `5H_(2)SO_(4)(conc)+4ZnrarrH_(2)S+4Zn^(2+)+4SO_(4)^(2-)+4H_(2)O`

A

In reaction (I), `H_(2)SO_(4)` acts as a dehydrating agent.

B

In reaction (II), `H_(2)SO_(4)` acts as an acid.

C

In reaction (III), `H_(2)SO_(4)` acts both as an acid and an oxidising agent.

D

In reaction (IV), `H_(2)SO_(4)`, acts as an oxidising agent.

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CENGAGE CHEMISTRY-REDOX REACTIONS-Exercises (Multiple Correct)
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  4. In the reaction I(2)+C(2)H(5)OH+overset(ө)OHrarrCHI(3)+HCOO^(ө)+H(2)...

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  5. Which of the following statements is//are correct?

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  6. Which of the following statements about the following reaction is//are...

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  7. The oxidation number of Cr is +6 in

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  8. The oxidation number of carbon is zero in

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  9. Which of the following has//have been arranged in order of decreasing...

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  10. The oxidation number of carboxylic carbon atom in CH(3)COOH is

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  11. Which of the following is//are autoredox reactions?

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  12. Which of the following is// disproportionatin reactions?

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  13. For the reaction KO(2)+H(2)O+CO(2)rarrKHCO(3)+O(2), the mechanism of r...

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  14. Which of the following can be used both as an oxidant and a reductant?

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  15. Which molecule represent by the bold atoms are in their highest oxidat...

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  16. Which molecule represent by the bold atoms are in their lowest oxidati...

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  17. Which of the following statements is//are correct about CH(2)=C Cl(2)

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  18. Which of the following statemetns about tailing of Hg is//are correct?

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  19. Which of the following is//are disproportionation redox changes?

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  20. Which of the following statements about the reaction is//are correct? ...

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