Question

Which one of the following will not produce an acid when made to react with water.

पर्याय

• Carbon monoxide

• Carbon dioxide

• Zinc oxide

• Copper (II) oxide

Answer 1

Carbon monoxide

Explanation:

Carbon monoxide (CO) is classified as a neutral oxide, meaning it shows neither acidic nor basic properties and does not react with water to form an acid. In contrast, carbon dioxide (CO₂) is an acidic oxide of a non-metal that readily reacts with water to form weak carbonic acid (H₂CO₃). While metallic oxides like zinc oxide and copper oxide are generally insoluble in water and do not dissolve to form acids, carbon monoxide is the definitive choice as a neutral gaseous non-metal oxide that chemically fails to form an acid under any standard conditions.