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Excess of KI reacts with CuSO(4) solutio...

Excess of KI reacts with `CuSO_(4)` solution and then `Na_2S_2O_3` solution is added to it. Which of the statements is incorrect for this reaction?

A

`Na_(2)S_(2)O_(3)` is oxidised

B

`Cu l_2` is formed

C

`Cu_2l_2` is formed

D

Evolved `I_2` is reduced

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -1
  1. Which group P-block elements show highest positive oxidation state ?

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  2. 4ClO(3(aq))^(-)to3ClO(4(aq))^(-)+Cl((aq))^(-) is an example of

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  3. Excess of KI reacts with CuSO(4) solution and then Na2S2O3 solution is...

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  4. Six grams each of magnesium and oxygen was allowed to react. Assuming ...

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  5. Which one of the following is an example of disproportionation reactio...

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  6. The strength of an aqueous solution of I(2) can be determined by titra...

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  7. In the standardization of Na2S2O3 using K2Cr2O7 by iodometry, the equi...

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  8. The role of starch in iodometric titrations is that

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  9. Number of moles of FeSO4 that can reduce one mole of permanganate in a...

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  10. Equivalent weight of As(2)O3 in the following equation As(2)O3 +2I(2) ...

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  11. Which of the following statement is correct for a galvanic cell?

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  12. In a electrochemical cell

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  13. The electrode potential of an electrode is

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  14. Which of the following may not be present in all galvanic cells

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  15. Daniel cell is shown as

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  16. Which of the following metals will not react with solution of CuSO4 ?

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  17. In the copper zinc cell

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  18. The mass ofCO(2) obtained when 2g of pure limestone is calcined is

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  19. What is the weight of oxygen that is required for the complete combust...

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  20. Xg of Ag was dissolved in HNO3 and the solution was treated with exces...

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