Chemistry in Everyday Life — NEET UG practice

1. Understand the drug classes involved: The question asks about a drug that helps control both depression and hypertension, which points toward a tranquilizer.

2. Recall the function of Equanil: Equanil (Meprobamate) is a well-known tranquilizer that is used to relieve anxiety and is also used in controlling depression and hypertension.

3. Rule out the other options: Seldane is an antihistamine, Valium (a benzodiazepine) is mainly an anti-anxiety tranquilizer, and Prontosil is an antibacterial sulpha drug — none of these are described for controlling depression and hypertension together.

Hence, the answer is C. Equanil.

1. Recall what barbiturates are: Barbiturates are a class of sedative drugs derived from barbituric acid, used as tranquilizers and sleep-inducing agents.

2. Identify the barbiturate in the list: Among the given tranquilizers, Veronal is a classic example of a barbiturate.

3. Check the remaining options: Meprobamate, Valium, and Chlordiazepoxide are tranquilizers too, but they belong to other chemical classes (propanediols and benzodiazepines respectively), not barbiturates.

Hence, the answer is C. Veronal.

1. Identify the condition: Cheilosis is a clinical condition marked by fissuring (cracking) at the corners of the mouth and on the lips.

2. Recall which vitamin is linked to this symptom: Among the B-complex vitamins, it is specifically Vitamin B$_2$ (Riboflavin) whose deficiency produces this fissuring at the corners of the mouth, along with digestive disturbances and a burning sensation of the skin.

3. Eliminate the other options: Thiamine (B$_1$) deficiency causes Beri-Beri, nicotinamide deficiency causes pellagra, and pyridoxamine (a form of B$_6$) deficiency causes convulsions — none of these match cheilosis.

Hence, the answer is D. riboflavin.