Chemical Engineering MCQs

6108 MCQs  (Page 292 of 611)

Attempt Chemical Engineering Quiz
_____________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate?
A. Fibrous
B. Leathery
C. Rubbery
D. Hard
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Linear polymers are normally_________________?
A. Thermosetting
B. Thermoplastic
C. Elastometric
D. Having extremely high softening point
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Condensation polymerisation is not involved in the manufacture of_________________?
A. Teflon
B. Polythene
C. Terylene
D. Nylon
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The repeating units of PTFE are___________________?
A. Cl2ch-ch3
B. F2 c = cf2
C. F3 c-cf3
D. Fclc = cf2
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Rayon is superior to cotton in making gauge for wound treatment, because rayon_____________________?
A. Is a synthetic polymer
B. Does not stick to the wound unlike cotton
C. Can absorb over 90% of its own weight of water
D. Both b. and c.
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Polystyrene is a light, transparent, thermoplastic material used for making __________________?
A. Toys and combs
B. Packaging bags
C. Non-sticking utensils
D. Electrical insulation
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Polypropylene is preferred to polythene, because the former is ____________________?
A. Non-inflammable
B. Harder
C. Stronger
D. Both b. & c.
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The inter particle forces between linear chains in nylon-66 are ______________ bonds?
A. Hydrogen
B. Covalent
C. Ionic
D. None of these
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Hot drink (e.g., tea) cups are usually made of _____________________?
A. Polystyrene
B. Polythene
C. Polypropylene
D. Pvc
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Low density polythene as compared to high density polythene is____________________?
A. Harder
B. Tougher
C. Chemically inert
D. More flexible
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Word of the Day
28 Jul
Fragile
(of an object) easily broken or damaged.
نازک، کاغذی، آسانی سے ٹوٹ جانیوالا

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