Which of the following is a hypnotic drug?

luminal

The correct answer is 1. Luminal.

Luminal is a barbiturate drug that is used as a hypnotic, meaning that it is used to induce sleep. It is also used as an anticonvulsant, meaning that it is used to prevent seizures. Salol, catechol, and chemisol are not hypnotic drugs.

Luminal was first synthesized in 1882 and was introduced as a commercial drug in 1903. It is a white, odorless powder that is soluble in water and alcohol. Luminal is a short-acting barbiturate, meaning that it has a relatively short duration of action. It is typically taken orally, but it can also be given intravenously or rectally.

Luminal is generally safe when used as directed. However, it can cause some side effects, such as drowsiness, dizziness, and headache. It can also be addictive. If you are taking Luminal, it is important to talk to your doctor about the risks and benefits of the drug.

Here is a table that summarizes the properties of Luminal: