Electrochemistry online mock test 2

This Quiz is a Simple test for +2 Science group students which contain Questions in Electrochemistry-I. Just participate in it and test yo...

This Quiz is a Simple test for +2 Science group students which contain Questionsin Electrochemistry-I. Just participate in it and test your skill. ❤❤❤❤❤❤❤

  1. Equivalent conductance of acetic acid at 25°C is 80 ohm–1 cm(gram equivalent)1 and at infinite dilution is 400 ohm–1cm2 (gram equivalent)–1. The degree of dissociation is
  2. 1

  3. Faraday's laws of electrolysis are related to
  4. atomic number of the cation
    atomic number of the anion
    equivalent weight of the electrolyte
    speed of the cation
  1. The indicator suitable for the titration of oxalic acid against NaOH is
  2. potassium permanganate
    methyl orange

  3. If 0.2 ampere can deposit 0.1978 g of copper in 50 minutes, how much of copper will be deposited by 600 coulombs?
  4. 19.78 g
    1.978 g
    0.1978 g
    197.8 g

  5. Ostwald’s dilution law is applicable to the solution of
  6. CH3COOH

  7. The Indicator used in the titration of ammonium hydroxide with hydrochloric acid is
  8. KMnO4
    Methyl orange

  9. The pH of a solution containing 0.1N NaOH solution is
  10. 1

  11. When 10–6 mole of a monobasic strong acid is dissolved in 1 litre of solvent, the pH of the sol
  12. 6
    less than 7

  13. When one coulomb of electricity is passed through an electrolytic solution, the mass deposited on the electrode is equal to
  14. equivalent weight
    molecular weight
    electrochemical equivalent
    one gram

  15. When pH of a solution is 2, the hydrogen ion concentration in moles litrel is
  16. 1 x 10–12
    1 x 10–4
    1 x 10–7
    1 x 10–2

  17. When sodium acetate is added to (a solution of) acetic acid, the degree of ionisation of acetic acid
  18. increases
    does not change
    becomes zero

  19. A solution which is resistant to changes of pH on addition of small amounts of an acid or a ba
  20. buffer solution
    true solution
    isohydric solution
    ideal solution

  21. Indicators used in acid-base titrations are _______
  22. strong organic acids
    strong organic bases
    weak organic acids or weak organic bases

  23. NH4OH is a weak base because _______
  24. it has low vapour pressure
    it is only partially ionised
    it is completely ionised
    it has low density

  25. The hydrogen ion concentration of a buffer solution consisting of a weak acid and its salt is given by
  26. [H+] = Ka[Salt]/[ Acid ]
    [H+] = Ka[Salt]
    [H+] = Ka[Acid]
    [H+] = Ka[Salt]/[Acid]

  27. The laws of electrolysis were enunciated first by ______
  28. Dalton

  29. The process in which chemical change occurs on passing electricity is termed as _______
  30. neutralization

  31. The specific conductance of a 0.01 M solution of KCl is 0.0014 ohm–1 cm–1 at 25oC. Its equivalent conductance is ______
  32. 14 ohm–1 cm2 eq–1
    140 ohm–1 cm2 eq–1
    1.4 ohm–1 cm2 eq–1
    0.14 ohm–1 cm2 eq–1

  33. Which one of the following formulae represents Ostwald’s dilution law for a binary electrolyte whose degree of dissociation is α and concentration C?
  34. K = (1– α)C/α
    K = α2C/ 1–α
    K = (1– α)C/α2
    K = α2C/ (1–α)C

  35. Which one of the following relationship is correct?
  36. pH =1 / [H+]
    pH = log10 [H+]
    log10 pH = [H+]
    pH = log10 1 / [H+]

  37. The value of enthalpy of neutralisation of strong acid by strong base is
  38. – 87.32 kJ equiv– 1
    – 57.32 kJ equiv– 1
    – 72.57 kJ equiv– 1
    – 77.23 kJ equiv– 1

  39. For the titration between HCl and sodium carbonate the indicator used is
  40. potassium permanganate
    methyl orange

  41. The number of moles of electrons required to discharge one mole of Al+3 is
  42. 3

  43. pH range of phenol red is
  44. 6.8 – 8.4
    4.4 – 6.2
    3.1 – 4.4
    8.3 – 10
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Advanced Chemistry: Electrochemistry online mock test 2
Electrochemistry online mock test 2
Advanced Chemistry
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