The use of aspartame is limited to cold foods and drinks because:

1.	It is unstable when heated and decomposes at cooking temperature.
2.	It is 500 times sweeter than cane sugar.
3.	It becomes bitter at cooking temperature.
4.	It reacts with the food at cooking temperature.

The compound that cannot be used as a food preservative is -

1. Table salt

2. Black pepper

3. Vegetable oil

4. Sodium benzoate

A better substitute of Mg(OH)₂ as medicine is-

1. Ranitidine

2. Histamine

3. Cyclopam

4. Ipranzoid

Depression is caused by: 

1. High level of adrenaline

2. High level of noradrenaline

3. Low level of noradrenaline

4. Low level of adrenaline

The sweetening agent that is used in the preparation of sweets for a diabetic patient is -

1. Saccharin.

2. Aspartame.

3. Glucose.

4. Both 1 and 2

 0.2 percent solution of phenol is used as an:

1. Disinfectant 

2. Antibiotic

3. Antiseptic 

4. Both 1 and 3

Phenelzine is classified as -

1. Anti-allergic

2. Anti-depressant

3. Anaesthetic

4. Analgesic

Tincture of iodine is used as - 

1. Antiseptic

2. Analgesic 

3. Disinfectant

4. Antidepressant

Chloramphenicol is classified as:

1. Antiallergic

2. Antiseptic

3. Antibiotic

4. Anaesthetic

The term "target molecules or drug targets" is used in medicinal chemistry, which means