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

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Question number: 1

» Chemistry » Fibres and Plastics

MCQ▾

Question

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

Choices

Choice (4) Response
a.

Acrylic

b.

Nylon

c.

Melamine

d.

Polyester

Question number: 2

» Chemistry » Fibres and Plastics

MCQ▾

Question

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. None of the above

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