What term is used to describe an oxide whose aqueous solution turns blue litmus red?
Answer Details
The term used to describe an oxide whose aqueous solution turns blue litmus red is an acid anhydride. Acid anhydrides are oxides that react with water to form acidic solutions. They are usually non-metal oxides that react with water to form an acidic solution. When an acid anhydride dissolves in water, it reacts with the water molecules to produce an acid. The acid then turns blue litmus red, indicating the presence of an acidic solution. Therefore, option B, acid anhydride, is the correct answer.