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Chemical Equilibrium Test - 63
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Chemical Equilibrium Test - 63
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  • Question 1/10
    4 / -1
    The number of H+ in 1 cc of a solution of pH = 13 is
    Solutions

  • Question 2/10
    4 / -1
    In decimolar solution, CH3COOH is ionised to the extent of 1.3%. If log 1.3 = 0.11 , what is the pH of the solution ?
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  • Question 3/10
    4 / -1
    The concentration of [H+] and concentration of [OH-] of a 0.1 aqueous solution of 2% ionised weak acid is [ ionic product of water = 1 × 10–4]
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  • Question 4/10
    4 / -1
    Which of the following solution will have pH close to 1.0 ?
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  • Question 5/10
    4 / -1
    The pH of 0.1 M solution of a weak acid is 3. What is the value of the ionisation constant for the acid?
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  • Question 6/10
    4 / -1
    A certain buffer solution contains equal concentration of X- and HX. The Ka for HX is10-8. The pH of the buffer is
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  • Question 7/10
    4 / -1
    The pKa of HCN is 9.30.The pH of a solution prepared by mixing 2.5 moles of KCN and 2.5 moles of HCN in water and making up the total volume of 500 ml is
    Solutions

  • Question 8/10
    4 / -1
    Solution of 0.1 N NH4OH and 0.1 N NH4Cl has pH 9.25. Then pKb of NH4OH is
  • Question 9/10
    4 / -1
    If the solubility of PbCl2 at 250C is 6.3 × 10-3 mole/litre, its solubility product at that temperature is
    Solutions

  • Question 10/10
    4 / -1
    A saturated solution of Ag2SO4 has solubility 2.5 × 10-2 M The value of its solubility product is
    Solutions

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