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Question 2 :
Yarn can be converted into fabrics by the process of spinning.

Question 3 :
State, whether the following statements are True or False.<br>Nylon is a polyamide polymer.

Question 4 :
Which of the following is an example of soft and fine wool?

Question 5 :
The fibre developed in New York &amp; London simultaneously is :

Question 6 :
Assertion: Most of the synthetic polymers are not biodegradable. Reason: Polymerization process induces toxic character in organic molecule.

Question 7 :
Assertion: Plastics are non-biodegradable. Reason: As they cannot be decomposed by micro-organisms.

Question 8 :
Environmental pollution by plastics can be minimized by practising the 4R principle of:

Question 9 :
Which of the following material take the longest to degenerate ?

Question 13 :
Which one of the following is an example of thermosetting polymers?

Question 16 :
Match the following with the correct answers.<br/>(a) Scouring&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;(i) Yields silk fibers<br/>(b) Mulberry leaves&#160; &#160; (ii) Cleaning sheared skin&#160;<br/>(c) Sheep&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; (iii) Food of silk worm.<br/>(d) Cocoon&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;(iv) Wool yielding animal.&#160;