Question

What are the significance of chemistry in the following fields? a) Industry
b) Clothing
c) Cosmetics

Answer 1

a) Industry:
$\bullet$ Chemistry widely helps in improving the efficiency of various industrial processes. (0.5 Mark)
$\bullet$ Natural and artificial products are developed in industries using different physical and chemical processes. (0.5 Mark)

b) Cosmetics:
The knowledge of chemistry is used to convert various ingredients into cosmetics that are used to cleanse, protect and change the appearance of the human body. Examples: Talcum powder, lipsticks, perfumes, lotions, etc. ( 1 Mark)

c) Clothing:
$\bullet$ Chemistry is widely used in the clothing industry for manufacturing clothes. (0.5 Mark)
$\bullet$ Manufacturing of clothing started from the knowledge of conversion of fibres to fabrics. (0.5 Mark)
$\bullet$ Fibres can be both natural and synthetic. (0.5 Mark)
$\bullet$ Synthetic fibres are synthesised in the industries. They are strong, resistant to wrinkles and dry quickly. (0.5 Mark)
$\bullet$ Natural fibres include cotton, silk etc. (0.5 Mark)
$\bullet$ Synthetic fibres include nylon, terylene, etc. (0.5 Mark)