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JIPMER2008ChemistryElectrochemistry

The number of moles of oxygen obtained by the electrolytic decomposition of 108 g water is

Options

  1. A2.5
  2. B3
  3. C5
  4. D7.5

Correct answer

B. 3

Step-by-step solution

( array ll 2 H ₂ O Electrolysis 2 H ₂+ & O ₂ 2 mol & 1 mol 2 18 =36 g array ) ( 36 ~g ) of ( H ₂ O ) produce 1 mole of oxygen ( 108 ~g ) of water will produce oxygen (= 108 36 =3 ~mol )

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