Question

How can you prove that oxides of non metals are generally acidic in nature...

Answer 1

Some prominent examples of nonmetal oxides are CO2, NO2, SO2, SO3 and P2O5.

Gaseous oxides like CO2, NO2 and SO2 turn MOIST blue litmus red, just as acids do. This conclusively proves their acidic nature.

When these oxides are dissolved in water, they react and form acid solutions that also turn blue litmus red.

CO2 + H2O = H2CO3 (carbonic acid)

SO3 + H2O = H2SO4 (sulphuric acid)

N2O5 + H2O = 2HNO3 (nitric acid)

Their acidic nature can also be verified with the pH paper, as the pH values of such acidic solutions would always be much less than 7.

Answer 2

hii mate...

oxides of non metals reacts with the hydrogen in water and thus forms an acid. hence we know that non metal oxides are acidic in nature

hope it helped u...!