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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ce153

For , at a given temperature. Four mixtures are prepared (concentrations in ). For which of them does the net reaction proceed forward?

  1. A, ,
  2. B, ,
  3. C, ,
  4. D, ,

Answer: A, D

gives 7.5, 12.0, 10.0 and 6.67 for the four mixtures. Forward reaction needs , which holds for the first and fourth. The second has (backward) and the third has (already at equilibrium).
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