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NEST2014ChemistryGeneral Principles and Processes of Isolation of Metals

In the following figure, Gibb's energy ( G^0 ) is plotted against T for the formation of some oxides. The correct statement(s) is/are

Options

  1. AThe large negative slope of the line representing oxidation of carbon is due to substantial increase in entrop
  2. BThe reaction 2 Al +3 MgO Al ₂ O ₃+3 Mg is feasible at 1200^ C .
  3. CAt 200^ C the reducing properties of the metals follow the order M g A l F e .
  4. DAt 800^ C , the equilibrium constant for the oxidation of magnesium is the highest among the four reactions.

Correct answer

D. At 800^ C , the equilibrium constant for the oxidation of magnesium is the highest among the four reactions.

Step-by-step solution

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