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Colour of potassium iodide solution cont...

Colour of potassium iodide solution containing starch turns blue when chlorine water is added Explain.

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The correct Answer is:
`I_(2)` strach complex is blue.
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AAKASH SERIES-ELECTROCHEMISTRY -EXERCISE - 4.2
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  2. Potential of normal calomel electrode is -0.28 V . The emf of cell obt...

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  3. The standard potential of Ni^(2+), Ni is -0236 V. It this electrode is...

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  4. The oxidation power of halogens and the reducing power of halides is j...

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  5. E0 for the reaction , Ag^(+) + e^(-) to Ag, is 0.8 V. Calculate E^@ f...

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  6. Standard oxidation potential of iron electrode is + 0.44 V. Calculate ...

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  7. Colour of potassium iodide solution containing starch turns blue when ...

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  8. E0 values of Zn^(2+), Zn , Mg^(2+), Mg and Cu^(2+), Cu are -0.76 V, ...

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  9. At 298 K the equilibrium constant for the redox reaction CuSO4 + Fe <...

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  10. Ag^(+) + e^(-) rarr Ag, E^(0) = + 0.8 V and Zn^(2+) + 2e^(-) rarr Zn, ...

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  11. E^@ value for Fe^(3+) 3e^(-) to Fe and Fe^(2+) + 2e^(-) to Fe are -0.0...

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  12. The EMI of the cell Pt, H(2)(2 atm) |HCl (1M)|H2(10 atm),Pt is xV and...

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  13. At 25^@C the EMF of the cell Zn, ZnSO4"//"CuSO4, Cu is 0.03V. The tem...

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  14. The molar conductivity of 0.025mol L^(-1) methanoic acid is 46.1 S cm^...

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  15. E("cell") for the reaction Pt , H2 (1atm)//H^(+) (1M)"//" C6H)5NH3Cl (...

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  16. At 25^@C potential of the cell, Pt, H2(g), HCl (aq)"//"AgCl(s), Ag(s) ...

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  17. When salt is spread on a road during winter, corrosion of motor cars i...

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  18. E^(0) = -08275V for the reaction, 2H2O + 2e^(-) to 2OH^(-) + H(2).Calc...

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  19. E^(0) of silver electrode is 0.8 V and solubility product of Agl is 1 ...

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  20. The cell in which the following reaction occurs: 2Fe^(3+)(aq) + 2I^(...

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