According to the following diagram, A reduces \( \mathrm{BO}_{2} \)...

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According to the following diagram, A reduces \( \mathrm{BO}_{2} \) when the temperature is :
[JEE Main-2020 (January)]
\( \mathrm{P} \)
(1) \( 1200^{\circ} \mathrm{C} \)
(2) \( 1200^{\circ} \mathrm{C} \) but \( 1400^{\circ} \mathrm{C} \)
(3) \( 1400^{\circ} \mathrm{C} \)
(4) \( 1400^{\circ} \mathrm{C} \)
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