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Chemical Equili...

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  • Question 1
    4 / -1

    Sodium carbonate cannot be used in place of ammonium carbonate for the identification of the fifth group radicals. This is because the

  • Question 2
    4 / -1

    The pH of blood does not appreciably change by a small addition of acid or a base because blood

  • Question 3
    4 / -1

    The solubility of calcium phosphate in water is x mol L–1 at 25o C. Its solubility product is equal to

  • Question 4
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    The Ksp of CuS, Ag2S and HgS are 10–31,10–44 and 10–54 respectively The solubility of these sulphides are in the order

  • Question 5
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    A physician wishes to prepare a buffer solution at pH = 3.58 that efficiently resists a change in pH yet contain only small conc. of the buffering agents. Which one of the following weak acid together with its sodium salt would be best to use?

  • Question 6
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  • Question 7
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    Which of the following on reaction with H2S does not produce metallic sulphide?

  • Question 8
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    What is the value of Ksp for PbCl2 ?

  • Question 9
    4 / -1

    1 M NaCl and 1 MHCl are present in an aqueous solution. The solution is

  • Question 10
    4 / -1

    Species acting both as Bronsted acid and base is

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