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Which of the following reactions involve...

Which of the following reactions involve disproportionation ?

A

`2H_2SO_4 + Cu rarr CuSO_4 + 2H_2O+ SO_2`

B

`As_2O_3 + 3H_2S rarr As_2S_3 + 3H_2O`

C

`2KOH + Cl_2 rarr KCI+ KOCI+ H_2O`

D

`Ca_3P_2 + 6H_2O rarr 3Ca(OH)_2 + 2PH_3`

Text Solution

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The correct Answer is:
C
(c) A reaction, in which a substance undergoes simultaneous oxidation and reduction, is called disproportionalion reaction. In these reactions, the same substance simultaneously acts as an oxidising agent and as a reducing agent. Here Cl undergocs Simultaneous oxidation and reduction. `2KOH +CI_2 rarr KCI + KOCI + H_2O`
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DISHA PUBLICATION-REDOX REACTIONS-EXERCISE-1 : CONCEPT BUILDER ( TOPICWISE )
  1. The oxidation states of the most electronegative elements in the produ...

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  2. Which of the following statements is not correct?

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  3. The3ClO^(-)(aq.)to ClO(3)^(-)(aq.)+2Cl^(-)(aq.) is an example of

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  4. For the reaction : NH3 + OCI^(-) rarr N2H4 + Cl^(-) in basic medium, t...

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  5. Which of the following reactions involve disproportionation ?

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  6. In a balanced equation H(2)SO(4)+xHI rarr H(2)S+YI(2)+zH(2)O, the valu...

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  7. KMnO4 oxidises oxalic acid in acidic medium. The number of CO2 molecul...

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  8. In the chemical reaction, K2 Cr2 O7 + xH2 SO4 + ySO2 rarr K2SO4 + Cr2(...

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  9. Consider the following reaction 5H2O2 +XCIO2 +2OH^(-) rarr XCI^(-)- + ...

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  10. Number of moles of K2Cr2O7 reduced by one mole of Sn^(2+) ion is

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  11. Which of the following statements is not correct?

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  12. The species that undergoes disproportionational is an alkaline medium ...

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  13. What products are expected from the desproprtionation reactin of hypoc...

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  14. Which is the best description of the behaviour of bromine in the react...

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

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  16. When copper is treated with a certain concentration of nitric acid, ni...

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  17. Which of the following is not a disproportionation reaction? I. NH4N...

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  18. Which fo the following statements are correct concerning redox propret...

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  19. Standard electrode potentials of redox couples A^(2+)//A, B^(2+)//B, C...

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  20. The standard electrode potential of four metallic elements (A, B, C an...

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