Which does not react with sodium hydroxide solution?
- Fat
- Vinegar
- Benzene
- Carbon dioxide
Submitted by :- Muhammad Nawaz
Which of the following is the widely used electrical insulator?
A. Paper
B. Polymer
C. Epoxy
D. Plastic
Submitted by :- Muhammad Nawaz
Which of the following refers to the average number of mers in the molecule, usually several hundred to several thousand?
A. Polymerization factor
B. Degree of polymerization
C. Polymerization constant
D. Polemerization index
Submitted by :- Muhammad Nawaz
Pyrolysis gasoline is obtained from which of the following?
A. Catalytic cracking
B. Steam cracking
C. Thermal cracking
D. Gasification
Submitted by :- Muhammad Nawaz
What type of the coal is ideal for metallurgical coal?
A. Anthracite coal
B. Bituminous coal
C. Lignite
D. Peat
Submitted by :- Muhammad Nawaz
Which of the following is the common reinforcement for polymer composites?
A. Graphite
B. Glass fiber
C. Ceramic
D. Boron
Submitted by :- Muhammad Nawaz
The engineering materials known “plastics” are known as _______.
A. Polyethylene
B. Mers
C. Polyvinyl chloride
D. Polymers
Submitted by :- Muhammad Nawaz
What is a combination of two or more materials that has properties that the components materials do not have by themselves?
A. Composite
B. Matrix
C. Mixture
D. Compound
Submitted by :- Muhammad Nawaz
Wood is composed, of chains of cellulose molecules bonded together by another natural polymer known as _______.
A. Additive
B. Plastic
C. Rubber
D. Lignin
Submitted by :- Muhammad Nawaz
Which of the following is a polymer production process that involves forming polymer chain a comprising two different monuments?
A. Cross-linking
B. Blending
C. Copolymerization
D. Alloying
Submitted by :- Muhammad Nawaz