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(i) Preservatives: The chemical substances which are used to protect food against bacteria, yeast and moulds are called preservatives. The most common preservative used is sodium benzoate C 6 H 5 COONa. (ii) Tranquilizers: Tranquilizers are neurologically active drugs . These medicines act on central nervous system and help in reducing anxiety and relieve tension on the nerves. For example: Valium.

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Chemistry in Everyday Life

Short Answer Type

111.

Explain antipyretics and analgesics, and give one example of each.

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112.

State the function along with one example each of:
(i) Antihistamines, (ii) Antioxidants

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113.

Why should aspirin cannot be taken on an empty stomach? What does it contain chemically? Draw its structure.

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114.

Why is it essential to test the patients for “allergy to penicillin”, before it is administered?

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115.

How do antipyretic and analgesic compounds help in cases of common sickness ? Give an example for each.

103 Views

116.

What are antiseptics? Give example of an antiseptic compound.

111 Views

117.

What are antipyretics? Give the name and structure of an antipyretic.

305 Views

118.

Describe the following with example in each case:
(i) Antioxidants.
(ii) Biodegradable detergents.

95 Views

119.
Describe the following with example in each case:
(i) Preservatives
(ii) Tranquilizers.

(i) Preservatives: The chemical substances which are used to protect food against bacteria, yeast and moulds are called preservatives. The most common preservative used is sodium benzoate C₆H₅COONa.

(ii) Tranquilizers: Tranquilizers are neurologically active drugs . These medicines act on central nervous system and help in reducing anxiety and relieve tension on the nerves. For example: Valium.

103 Views