Short Answer TypeState the function along with one example each of:
(i) Antihistamines, (ii) Antioxidants
(i) Antihistamines are those which counteract the effect of histamine which is generated in the body due to allergy e.g., diphenyl hydramine, promethazine, chlorophenaramine.
(ii) Antioxidants are those chemicals which prevent oxidation of food and other materials e.g., BHA (Butylated hydroxy anisole) and BHT (Butylated hydroxy toluene).
Why should aspirin cannot be taken on an empty stomach? What does it contain chemically? Draw its structure.
Why is it essential to test the patients for “allergy to penicillin”, before it is administered?
How do antipyretic and analgesic compounds help in cases of common sickness ? Give an example for each.
Describe the following with example in each case:
(i) Antioxidants.
(ii) Biodegradable detergents.
Describe the following with example in each case:
(i) Preservatives
(ii) Tranquilizers.
Long Answer TypeDefine the following and given one example of each:
(i) Anti-histamines
(ii) Disinfectants
(iii) Antacids.
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