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JEE Main20209 Jan 2020Morning ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

According to the following diagram, A reduces B O 2 when the temperature is:

Options

  1. A< 1400 o C
  2. B> 1400 o C
  3. C> 1200 o C but < 1400 o C
  4. D< 1200 o C

Correct answer

B. > 1400 o C

Step-by-step solution

A + BO 2 &#8594; B + AO 2 This reaction will be spontaneous when &#916; G = &#8722; v e Which we can see from the diagram, is possible only at temperature &#62; &#160; 1400 &#160; &#176; C

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