Question

Help of an activity show that non- metallic oxide acidic in nature

Answer 1

burn a magnesium ribbon  and take its oxides pour some water in that oxide and test it with blue litmus paper you will   saw that the blue litmus paper turns red 
therefore ,non-metallic oxides are acidic in nature

Answer 2

Explanation:

Aim of the experiment -

To show that non metals react with oxygen to form non metallic oxides which are acidic in nature.

Materials required -

Charcoal, deflagrating spoon, glass jar, lid, blue litmus paper, watch glass.

Procedure -

Small piece of charcoal was taken in a deflagrating spoon and it was ignited.

The spoon was put in a glass jar and was covered by a lid.

After sometime, the spoon was removed from the jar.

Water was added in the jar and it was covered.

The contents were mixed by shaking them properly.

The solution was poured in a watch glass.

The blue litmus paper was dipped in it.

Observation -

The blue litmus paper turned into red.

Conclusion -

The solution is acidic. The charcoal (carbon) burn in presence of oxygen to form Carbon Dioxide gas that get dissolved in watercto form an acid called carbonic acid.

\begin{lgathered}\bf {C(s) + O_{2}(g) \implies CO_{2}(g)} \\Charcoal + Oxygen \implies Carbon Dioxide \\ \\ CO_{2}(g) + H_{2}O(l) \implies H_{2}CO_{3}(aq) \\Carbon Dioxide + Water \implies Carbonic Acid\end{lgathered}

C(s)+O

2

(g)⟹CO

2

(g)

Charcoal+Oxygen⟹CarbonDioxide

CO

2

(g)+H

2

O(l)⟹H

2

CO

3

(aq)

CarbonDioxide+Water⟹CarbonicAcid

Precautions -

Keep your hands safe from the solution during the experiment.