Question

Which among the given non-metallic oxide reacts with water to form an acid present in batteries?

• A. Zinc oxide
• B. Aluminium oxide
• C. Sodium oxide
• D. Sulphur trioxide

Answer 1

The correct option is D

Sulphur trioxide

Non-metallic oxides react with water to form acids.
A non-metallic oxide such as nitrogen dioxide reacts with water to form nitric acid, carbon dioxide reacts with water to form carbonic acid, sulphur dioxide reacts with water to form sulphurous acid and sulphur trioxide reacts with water forms sulphuric acid.
Sulphuric acid is present in the electrolyte of batteries. Hence sulphur trioxide is the non-metallic oxide which reacts with water to form sulphuric acid present in batteries.