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Electrolysis of dilute aqueous NaCl solu...

Electrolysis of dilute aqueous NaCl solution was carried out by passing 10mA current. The time required to liberate 0.01 mole of `H_(2)` gas at the cathode is ( 1F = 96500 C `"mol"^(-1)` )

A

`9.65xx10^(4)` s

B

`19.3 xx 10^(4)s`

C

`28.95 xx 10^(4) s`

D

`38.6 xx 10^(4) s`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • An aqueous solution contains a substance which yields 4 xx 10^-3 mol liter^-1 ion of H_3O^+ . If log 2 = 0.3010 the pH of the solution is:

    A
    1.5
    B
    2.398
    C
    3
    D
    3.4

  • The boiling point of an aqueous solution of a nonvolatile solute is 100.15^@C. What is the freezing point of an aqueous solution obtained by diluting the above solution with an equal volume of water? The value of K_b and K_f for water are 0.512^@C and 1.86^@C K molality^-1:

    A
    `-0.544^@C`
    B
    `-0.512^@C`
    C
    `-0.272^@C`
    D
    `-1.86^@C`

  • The boiling point of an aqueous solution of a nonvolatile solute is 100.15^@C. What is the freezing point of an aqueous solution obtained by diluting the above solution with an equal volume of water? The value of K_b and K_f for water are 0.512^@C and 1.86^@C K molality^-1:

    A
    `-0.544^@C`
    B
    `-0.512^@C`
    C
    `-0.272^@C`
    D
    `-1.86^@C`

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