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Medical
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The weight of silver (at wt.=108) displaced by a quantity of electricity which displaces 5600 mL of O2 at STP will be:

  • Option 1)

    5.4 g

  • Option 2)

    10.8 g

  • Option 3)

    54.9 g

  • Option 4)

    108.0 g

 
  Second law of electrolysis - The masses of different substances, liberated or dissolved by the electricity are proportional to their equivalent masses. -     According to faraday secornd law =  => Option 1) 5.4 g incorrect Option 2) 10.8 g incorrect Option 3) 54.9 g incorrect Option 4) 108.0 g correct
Medical
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When 0.1 mol \text{MnO}_{4}^{-2} is oxidised the quantity of electricity required to completely oxidise \text{MnO}_{4}^{-2} to \text{MnO}_{4}^{-} is :

  • Option 1)

    96500 C

  • Option 2)

    2 \times 96500 C

  • Option 3)

    9650 C

  • Option 4)

    96.50 C

 
The oxidation reaction is  +6                           +7             0.1mol 0.1mol 0.1 mol  produces 0.1 mol of charge. Option 1) 96500 C This solution is incorrect  Option 2) 2 96500 C This solution is incorrect  Option 3) 9650 C This solution is correct  Option 4) 96.50 C This solution is incorrect 
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