Arrange the following metals in the order in which they displace
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    Electrochemistry

    Multiple Choice QuestionsShort Answer Type

    61. What are the units of Λ?
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    62. Write the Nernst equation for the following cell:
    Pt, Cl2 (1 atm)/2Cl– (1 M)
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    63. How does cell constant changes with the concentration of the solution in the conductivity cell.
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    64. What are conductors?
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    65. What are electrolytes?
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    66. How many Faradays of electricity are required to liberate 2 moles of hydrogen gas in electrolysis of solution?
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    67. What is meant by Faraday constant?
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    68. What is the relation between Ecell of hydrogen electrode and pH of the solution, when this half cell is connected with normal hydrogen electrode (NHE)?
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    69. What does the standard electrode potential of a metal being negative (EZn2+/Zn = -0.763 V) indicate?
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    70. Arrange the following metals in the order in which they displace each other from the solution of their salts Al, Cu, Fe, Mg and Zn.

    Answer:
    Mg> Al> Zn> Fe> Cu is decreasing order of their reactivity.
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