# According to the following diagram,

Question:

According to the following diagram, $\mathrm{A}$ reduces $\mathrm{BO}_{2}$ when the temperature is:

1. $<1400^{\circ} \mathrm{C}$

2. $>1400^{\circ} \mathrm{C}$

3. $>1200^{\circ} \mathrm{C}$ but $<1400^{\circ} \mathrm{C}$

4. $<1200^{\circ} \mathrm{C}$

Correct Option: , 2

Solution:

$\mathrm{A}+\mathrm{BO}_{2} \longrightarrow \mathrm{B}+\mathrm{AO}_{2}$

$\Delta \mathrm{G}=-\mathrm{ve}$

when the temperature is above $1400^{\circ} \mathrm{C}$, A reduces $\mathrm{BO}_{2}$.