This set of Applied Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Preparation, Properties and Applications of some Compounds – 2”.
1. Poly carbonates are the durable materials with _________
a) Low impact resistances
b) High scratch resistance
c) Low scratch resistance
d) Low transparency
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Explanation: Poly carbonates are the durable materials with the high impact resistances, low scratch resistances and high transparency.
2. Poly carbonates possess glass transition temperature of __________
a) 144oC
b) 145oC
c) 146oC
d) 147oC
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Explanation: Poly carbonates has the transition temperature of 147oC. Poly carbonates are transparent and good electrical insulators.
3. _________ are used in the data storage.
a) Bakelite
b) TEFLON
c) Poly carbonates
d) Polyethylene
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Explanation: Poly carbonates are used in the data storage. They are used in the production of compact discs and bluray discs as well as DVD’s.
4. Poly carbonates are used as ________ in the high stability capacitors.
a) Accelerator
b) Inhibitor
c) Dielectric
d) Initiator
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Explanation: Poly carbonates are used as the dielectric in the high stability capacitors. Poly carbonates are used in the construction materials.
5. Polyurethanes are in the class of compounds __________
a) Reaction polymers
b) Chain polymers
c) Branched polymers
d) Linear polymers
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Explanation: Polyurethanes are in the class of compounds called reaction polymers which include in epoxies, polyesters and phenolics.
6. Polyurethanes possess __________
a) No impact resistance
b) Softness
c) Hardness
d) No tear resistance
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Explanation: The polyurethanes possess the impact resistance, tensile strength, hardness, abrasion and tear resistance.
7. The chair, house and car are some of the applications of the __________
a) Bakelite
b) TEFLON
c) Polyurethane
d) Poly vinyl chloride
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Explanation: The chair, house and car are some of the applications of the polyurethane. It has many applications in the daily life also.
8. Polyurethanes are _________
a) Good conductors
b) Good insulators
c) Having no tensile strength
d) Affected by heat
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Explanation: Polyurethanes are having the good insulating properties. They are having tensile strength and they are resistant to environment conditions like heat, moisture, etc.
9. Polyurethanes are used for purifying the ________
a) Water
b) Alcohol
c) Acids
d) Salt solutions
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Explanation: Polyurethanes are used for purifying the water. They are used in refrigeration and freezers also.
10. Sun glasses, computer cases and printing substrate can be done by using _________
a) Polyurethanes
b) Poly carbonates
c) Poly vinyl cyanide
d) Polyethylene
View Answer
Explanation: Sun glasses, computer cases and printing substrate can be done by using poly carbonates. Theft proplastic packaging which cannot be opened by hand are also made from poly carbonates.
Sanfoundry Global Education & Learning Series – Applied Chemistry.
To practice all areas of Applied Chemistry, here is complete set of 1000+ Multiple Choice Questions and Answers.
