Chemistry-Fibres and Plastics [NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension]: Questions 1 - 2 of 2

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Question 1

Question MCQ▾

Which of the following will be suitable for coating dress materials of fire-men?

Choices

Choice (4)Response

a.

Polyester

b.

Nylon

c.

Acrylic

d.

Melamine

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Question 2

Question MCQ▾

Helium balloons float in air why?

Choices

Choice (4)Response

a.

It has same weight as that of air

b.

It is heavier than air

c.

It is lighter than air

d.

Question does not provide sufficient data or is vague

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