One property of ammonia is A. It is insoluble in water B. It is a odourless gas C. It is a yellowish gas D. Its aqueous solution turns red litmus blue

Ammonia is a colorless gas with a characteristic pungent odor. It is very soluble in water, and its aqueous solution is basic, turning red litmus blue. Ammonia is a very important industrial chemical, and it is also used in household products such as cleaners and fertilizers.

Option A is incorrect because ammonia is very soluble in water.

Option B is incorrect because ammonia has a characteristic pungent odor.

Option C is incorrect because ammonia is a colorless gas.