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Chemistry

Chemistry
A polymeric substance used to make parachute is

Terylene
Cotton
Rayon
Viscose

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Chemistry
What is the mass percentage of oxygen in carbon dioxide (CO2)

0.658
0.509
0.727
0.305

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Chemistry
Nylon threads are made of

Polyvinyl polymer
Polyamide polymer
Polysaccharide
Polyester polymer

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Chemistry
Mixture can be

Pure substance
Both A and B
Heterogeneous
Homogeneous

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Chemistry
Silk fibre chemically is :

Fat
Carbohydrate
Protein
Cellulose

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Chemistry
The coordination number of body centered atom in cubic structure is

10
8
6
4

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