Ammonia is a base but does not contain a hydroxyl group. Why ? Share with your friends Share 1 Mohit Gupta answered this Kindly refer to the following link:https://www.meritnation.com/ask-answer/question/why-is-ammonia-said-to-be-basic-in-nature-even-though-it-doe/acids-bases-and-salts/5001160 -3 View Full Answer