Question: Which pair of oxides is acidic in nature?
$\mathrm{N}_{2} \mathrm{O}, \mathrm{BaO}$
$\mathrm{CaO}, \mathrm{SiO}_{2}$
$\mathrm{B}_{2} \mathrm{O}_{3}, \mathrm{CaO}$
$\mathrm{B}_{2} \mathrm{O}_{3}, \mathrm{SiO}_{2}$
Correct Option: , 4
Solution:
$\mathrm{B}_{2} \mathrm{O}_{3}$ and $\mathrm{SiO}_{2}$ both are oxides of non-metal and hence are acidic in nature.
