Density of low density polythene is about ____________ gm/c.c?
Density of low density polythene is about ____________ gm/c.c?
A. 0.38
B. 0.56
C. 0.81
D. 0.91
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Polyurethane cannot be used for making____________________?
Polyurethane cannot be used for making____________________?A. Mattresses & foam
B. Coating material
C. Adhesives
D. BottlesThermoplastic resins usually____________________?
Thermoplastic resins usually____________________?A. Remain hard as long as they are hot
B. Cannot be reclaimed from waste
C. Permanent setting resins
D. Less brittle than thermosetting resinsCellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%) ?
Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%) ?A. Water impermeable cellophane
B. Polythene
C. Cellulose acetate
D. TeflonSynthetic rubber___________________?
Synthetic rubber___________________?A. Deforms, if stretched to double of its original dimension
B. Is brittle at low temperature
C. Is softer at higher temperature
D. Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gasesDensity of high density polythene is about __________ gm/c.c ?
Density of high density polythene is about __________ gm/c.c ?A. 1.18
B. 1.05
C. 0.95
D. 0.99Hot drink (e.g, tea) cups are usually made of
Question: Hot drink (e.g, tea) cups are usually made of
[A].polystyrene [B].
polythene [C].
polypropylene [D].
PVC Answer: Option A
Explanation:
No answer description available for this question.