Question

Some materials are listed below:
1. Cotton 2. Bakelite 3. Melamine 4. Wool 5. Polyester
They are classified as
(i) Biodegradable
(ii) Protein-based fibers
(iii) Thermosetting plastics
(iv) Thermoplastics

• A. (i) - 1,4 ; (ii) - 4; (iii) - 2,3; (iv) - 5
• B. (i) - 1,4 ; (ii) - 1; (iii) - 2,4; (iv) - 3
• C. (i) - 1 ; (ii) - 2,4; (iii) - 5,3; (iv) - 1
• D. (i) - 1,5 ; (ii) - 2; (iii) - 1,3; (iv) - 4

Answer 1

The correct option is A (i) - 1,4 ; (ii) - 4; (iii) - 2,3; (iv) - 5

$\bullet$ Cotton and wool are biodegradable in nature.
$\bullet$ Wool is a protein based fiber.
$\bullet$ Bakelite and melamine are the examples of thermosetting plastics.
$\bullet$ Polyester is an example of thermoplastics.