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Questions
What is the significance of number of 6,6 in the polymer nylon-6,6?
State the significance of numbers in the polymer nylon-66.
What does ‘66’ signify in the name nylon-66?
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Solution
The numbers ‘6,6’ in Nylon-6,6 represent the number of carbon atoms present in each of the two monomers used to form the polymer:
- The first ‘6’ refers to hexamethylene diamine, which contains six carbon atoms.
- The second ‘6’ refers to adipic acid, which also contains six carbon atoms.
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Match the polymers given in Column I with their main applications given in Column II.
| Column I | Column II |
| (i) Bakelite | (a) Unbreakable crockery |
| (ii) Low-density polythene | (b) Non-stick cookwares |
| (iii) Melamine-formaldehyderesin | (c) Packaging material for shock absorbance |
| (iv) Nylon 6 | (d) Electrical switches |
| (v) Polytetrafluoroethane | (e) Squeeze bottles |
| (vi) Polystyrene | (f) Tyre, cords |
A raw material used in making nylon is
Nylon is a
Melamine is
Celanese silk is:-
