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Question

The weight of silver (at.wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of O2 at STP will be
  1. 5.4 g
  2. 10.8 g
  3. 54.0 g
  4. 108.0 g


Solution

The correct option is D 108.0 g
According to Faraday’s second law,
WAgEAg=WO2EO2 or WAg108=560022400×328
Or WAg108=88WAg=108 g

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