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Cu^(2+)(aq)+2I^(-) to CuI darr+(1)/(2)I(...

`Cu^(2+)(aq)+2I^(-) to CuI darr+(1)/(2)I_(2)`

A

For disproportionation reaction.

B

For comproportionation reaction.

C

For either intermolecular redox reaction or displacement reaction

D

For either thermal combination redox reaction or thermal decomposition redox reaction.

Text Solution

Verified by Experts

The correct Answer is:
c
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The unique behaviour of CU, having a positive E^(@) (reduction potential) accounts for its inability to liberate H_(2) from acids,. Only oxidising acids (nitric acid and hot concentrated sulphuric acid) react with Cu. The high energy of transform Cu(s) to Cu^(2+)(aq.) is not balanced by its hydration enthalpy. On the other hand, All Cu(II) halides are known except iodide. in this case, Cu^(2+) oxidises I^(-) to I_(2) : 2Cu^(2+)+4I^(-) to 2CuI(s)+I_(2) However, copper (I) compounds are unstable in aqueous solution annd undergo disproportionation. 2Cu^(+)(aq.)toCu^(2+)(aq.)+Cu The stability of Cu^(2+)(aq.) rather than Cu^(+)(aq) is due to the much more negative Delta_(Hyd) of Cu^(2+)(aq.) than Cu^(+)(aq.) Q. Consider the following transformation: CuSO_(4)(aq.)+KI(excess)to product Select the correct statement:

Complete the follwing chemical equations for reactions : (i) Fe^(@+) (aq) + MnO_(4)^(-)(aq) + H^(+) (aq) rarr (ii) Cr_(2)O_(7)^(2-)(aq) + I^(-)(aq) + H^(+) (aq) rarr .

The experiment rate law for the reaction S_(2)O_(8)^(2-)(aq) + 2I^(ɵ)(aq) rarr 2SO_(4)^(2-) (aq) + I_(2)(aq) is k[S_(2)O_(8)^(2-)] [I^(ɵ)] . How would the rate change if (a) Concentration of S_(2)O_(8)^(2-) is halved. (b) Concentration of S_(2)O_(8)^(2-) and I^(ɵ) are halved.

VK JAISWAL ENGLISH-TYPES OF REACTIONS-SUBJECTIVE PROBLEMS
  1. Cu^(2+)(aq)+2I^(-) to CuI darr+(1)/(2)I(2)

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  2. Find total number of reagnets which cann produce I(2) from KI solution...

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  3. Find total number of metal cations which are ppted as metal sulphide o...

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  4. Consider the following reaction P(4)+KOH to PH(3)+X How many P-H bon...

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  5. Which of the following species/reagent can reduce Fe^(3+)(aq.) into Fe...

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  6. Find out number ionic compounds which is/are water insoluble at room t...

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  7. Find the value of expression |x-y| for following compounds. where, ...

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  8. Find out total number of coloured compound(s) from following: BaCO(3...

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  9. Find out total number of cation(s) that produce precipitate with aqueo...

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  10. P(4)+SOCl(2) overset(Delta)toProducts Find out total number of non-p...

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  11. What is average oxidation state state of sulphur in product formed in ...

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  12. find out total number of coloured/black water insoluble compound(s) fr...

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  13. Find out total number of compounds which on heating undergo redox reac...

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  14. How many following Ammonium salts will evolve N(2) gas on heating? (...

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  15. How many following metals evolve NO (Nitric oxide) gas with dil. HNO(3...

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  16. Find number of basic radicals among the following cations, which can f...

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  17. Calculate difference between oxidation state of chromium (Cr) in blue ...

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  18. If hydrolysis of interhalogen compound can be represented by following...

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  19. Total number of species that can be oxidzed by acidic permanganate ion...

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  20. How many following metals evolve N(2)O gas with dil. HNO(3) (20%) Cr...

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  21. How many following ammonium salts will evolve NH(3) gas on heating? ...

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