Centum Hour_IX
Quiz
•
Chemistry
•
8th - 9th Grade
•
Medium
Himanshu Ranjan
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cotton is a natural polymer made up of ---------------------
Starch
Cellulose
Fructose
Nylon
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
This fibre is also known as artificial silk. It is cheaper than silk and can be woven like silk fibres. What are we talking about?
Nylon
Rayon
Wool
Cotton
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following is non-biodegradable?
Paper
Cotton
Banana peel
Plastic bags
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following is a thermosetting plastic?
Polyethylene
Poly Vinyl Chloride
Polystyrene
Bakelite
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The property of metals by which they can be beaten into thin sheets is called ---------------------
Malleability
Ductility
Conductivity
None
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Among the following, the cleanest source of energy is:
Natural Gas
Coal
Petroleum
Wood
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
When a copper vessel is exposed to moist air for long, it acquires a ----------------------------------- coating.
purple
yellow
bright red
dull green
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