Question

Pick out the most acidic oxide in the following a) SnO2 b) PbO2
c) CO2​

Answer 1

Answer:

CO2

Explanation:

The more electropositive the central atom the more basic the oxide. The more electronegative the central atom, the more acidic the oxide. Electropositive character increases from right to left across the periodic table and increases down the column

Answer 2

The most acidic oxide is carbon dioxide (CO2). (Option c)

- The chemical characteristics of an oxide is dependent on it's central atom's electropositivity or electronegativity.

- An acidic oxide will always have an electronegative central atom.

- And, among the three oxides mentioned in the question the carbon dioxide has the most electronegative central atom which is carbon.Because non-metals are always more electronegative than the metals and carbon is surely a non-metal.

- That's why carbon dioxide is the most acidic oxide.