Among the following, the narrow-spectrum antibiotic is:

1. chloramphenicol

2. penicillin G

3. ampicillin

4. amoxicillin

Hypnotic drug among the given options is: 

1. Metaldehyde 

2. Acetaldehyde

3. Paraldehyde 

4. None of these

Sulpha drugs are used for:

1. Removing bacteria.

2. Precipitating bacteria.

3. Stopping the growth of bacteria. 

4. Decreasing the size of bacteria.

Chemical that can acts as monopropellant among the following options is:

1. 

2. ${\mathrm{H}}_3\mathrm{C}-\mathrm{O}-\mathrm{N}=\mathrm{O}$

3. Kerosene

4. Alcohol

The human body does not produce:

1. DNA

2. Vitamins

3. Hormones

4. Enzymes

Which of the following hormones is produced under the condition of stress which stimulates glycogenolysis in the liver of human being?

1. Thyroxin

2. Insulin

3. Adrenaline

4. Estradiol

Mixture of chloroxylenol and terpineol acts as:

1. Antiseptic

2. Antipyretic

3. Antibiotic

4. Analgesic

Equanil is used as: 

1.  Analgesic

2.  Antibiotic

3.  Tranquilizer

4.  Antacid

The molecule among the following that acts as an antiseptic is -

1. Iodine + C₂H₅OH 

2. Boric acid

3. H₂O₂ 

4. All of the above