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In which of the following reactions, the...

In which of the following reactions, there is no change in valency ?

A

`SO_(2)+2H_(2)S rarr 2H_(2)O+3S`

B

`2Na +O_(2) rarr 2Na_(2)O_(2)`

C

`Na_(2)O_(2)+H_(2)SO_(4) rarr Na_(2)SO_(4) +H_(2)O_(2)`

D

`3KClO_(3) rarr 3KClO_(4)+KCl`

Text Solution

Verified by Experts

The correct Answer is:
C
(C) is not a redox reaction and hence no change in valency
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DINESH PUBLICATION-REDOX REACTIONS-Revision Question
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  2. The equivalent mass of potassium permanganate in alkaline medium is

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  3. In which of the following reactions, there is no change in valency ?

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  4. In the balanced chemical reaction IO(3)^(ө)+al^(ө)+bH^(ө)rarrcH(2)O+...

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  5. The oxidation states of S atoms in S(2)O(6)^(2-) from left to right re...

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  6. Small quantities of compounds TX, TY and TZ are put into separate test...

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  7. The oxidation number of sulphur in H(2)SO(4),H(2)S(2)O(4) and H(2)S(2)...

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

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  9. Which of the following species can functon as an oxidising as well as ...

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  10. Oxidation no. of P in H(4)P(2)O(5), H(4)P(2)O(6), and H(4)P(2)O(7) are...

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  11. The oxidation state of chrominium in the final product formed in the r...

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  12. Acidified K(2)Cr(2)O(7), solution turns green when Na(2)SO(3) is added...

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  13. In which of the following compounds, carbon exhibits a valency of four...

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  14. In the disproportionation 3HClO(3)rarrHClO(4)+Cl(2)+2O(2)+H(2)O the eq...

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  15. If the molecular mass of Na(2)S(2)O(3) and I(2) are M(1) and M(2) resp...

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  16. Which ordering of compounds is according to the decreasing order of th...

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  17. In which of the following compounds,nitrogen exhibits highest oxidatio...

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  18. When Cl(2) gas reacts with hot and concentrated sodium hydroxide solut...

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  19. The reaction of white phosphorus with aqueous NaOH gives phosphine alo...

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  20. What is the oxidation state of Co[Co(H(2)O)(5)Cl]^(2+) ?

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