Question

Fill in the blanks:-
1. Clothes are made up of_______ which are made from_______
2. The polymer cellulose is made up of a large number of________ units
3. Sik fibre is obtained from______whereas artificial silk is obtained by chemical treatment of ________
4. The polymer polyester is made up of repeating units ________
5. Synthetic fabrics soak______time to dry and take_________ .(less/more) 6. Polythene which is used to make polythene bags is an example of a_______
7. Iron rusts when it is exposed to_______and________
8. Plastics do not react with______and_____
9. Plastics are generally________ than metals.
10________is a special plastic on which oil and water do not stick. plastic on them to make them flame
11. Fire-proof plastics have a coating of_______plastic on them to make them flame resistant.
12. We should always remember the 4R principle:______,________ and __​

Answer 1

Answer:-1=cotton , cotton plant

2=glucose

3=silk worm,wood pulp

4= ethylene terephthalate

5=less

6=HDPE Plastic

7 oxygen and nitrogen