Question

Match the entries of column I with column II

Polymer	Uses
(a) Polyvinyl chloride	(i) Used to manufacture unbreakable crockery
(b) Polythene	(ii) Used for insulation of electrical wires
(c) Bakelite	(iii) Used to manufacture food packets
(d) Melamine	(iv) Used to manufacture electrical switches

• A. (a) - (ii), (b) - (iii), (c) - (i), (d) - (iv)
• B. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
• C. (a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)
• D. (a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)

Answer 1

The correct option is C

(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)

Polyvinyl chloride is a linear polymer (Thermoplastic) and it is soft, economical and a poor conductor of electricity which is why it is used for the insulation of electrical wires, bottles, pipes for water supply etc.

Polythene is used to manufacture food packets, dustbin crates etc. because polythene is a sturdy and lightweight material.

Bakelite is a cross-linking polymer (Thermosetting Plastic) and it is hard. Moreover, it is a poor conductor of heat and electricity. Hence it is used to manufacture electrical switches, plugs etc.

Melamine is also cross-linking polymer (Thermosetting Plastic) and it is hard. Moreover, it is a fireproof plastic which is why it is used to make unbreakable crockery.