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JEE Advanced levelSingle correct optionDifficulty 3 of 3ev099

Each Cl atom in the chain destroys on average 1.0e+05 ozone molecules before being removed. For 2.0e-09 mol of Cl atoms, the mass of ozone destroyed is (use = 48 g/mol)

  1. A19.2 mg
  2. B9.6 mg
  3. C4.8 mg
  4. D0.096 mg

Answer: B

Moles of ozone destroyed = 2.0e-09 x 1.0e+05 = 2.0e-04 mol. Mass = 2.0e-04 mol x 48 g/mol = 0.0096 g = 9.6 mg.
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