CBSE Class 8 Science - Synthetic Fibres And Plastics (1)
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SYNTHETIC FIBRES AND PLASTICS
1.The first fully man made fiber was:
(A) Polyester. (B) Acrylic. (C) Rayon. (D) Nylon.
2.Rayon is obtained by chemical treatment of
(A) Paper (B) Wood pulp (C) Fruit pulp (D) Any of these
3.Which of the following is not a synthetic fiber?
(A) Nylon (B) Acrylic (C) Rayon (D) Cotton
4.Which of the following is a polyester fiber
(A) Rayon. (B) Terelene. (C) Nylon. (D) Acrylic.
5.Synthetic fiber which resembles with wool is:
(A) Nylon. (B) Polycot. (C) Polytester. (D) Acrylic.
6.Which of the following is/are a man-made fiber?
(A) Acrylic. (B) Nylon. (C) Rayon. (D) All of these.
7.The synthetic fiber also known as artificial silk:
(A) Rayon. (B) Acrylic. (C) Nylon. (D) PET.
8.Parachutes and ropes for climbing mountain are made of:
(A) Rayon. (B) Polyester. (C) Acrylic. (D) Nylon.
9.Which of the following is non-biodegradable?
(A) Paper. (B) Wood. (C) Tin can. (D)Woolen clothes.
10.Cotton is polymer of :
(A) Fructose. (B) Cellulose. (C) Maltose. (D) Sucrose.
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