Carbon dioxide reacts with lime water Ca OH 2 to form salt CaCO 3 and water as- Ca OH 2 base + CO 2 → CaCO 3 salt + H 2 O water Indicate the nature of CO 2 . What will be the general nature of non-metallic oxides?

Carbon dioxide reacts with lime water Ca OH 2 to form salt CaCO 3 and water as- Ca OH 2 base + CO 2 → CaCO 3 salt + H 2 O water The nature of CO 2 is acidic in nature as it is a non-metallic oxide. The general nature of non-metallic oxides is that they are acidic in nature. Their aqueous solution turns blue litmus red.

Acids are defined as the substance which produces hydrogen ions in water. For Example, Sulphuric Acid, Hydrochloric Acid etc. They give sour taste. Acids turn blue litmus to red. They react with metals to produce salt and releases hydrogen gas. They react with metal carbonates and metal bicarbonates to form salt, water and carbon dioxide. They react with bases to form salt and water.