NSO Level 1- Science Olympiad (SOF) Class 8: Questions 491 - 496 of 1076

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Question number: 491

» Synthetic Fibres and Plastics

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MCQ▾

Question

The uses of some materials are given in the statement. Identify them

A polymer used for making ropes.

Choices

Choice (4)Response

a.

Polyester

b.

Nylon

c.

Polythene

d.

PVC

Question number: 492

» Synthetic Fibres and Plastics

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MCQ▾

Question

The uses of some materials are given in the statement. Identify them

A polymer used for making disposable glasses and plates is

Choices

Choice (4)Response

a.

Thermocol

b.

Melamine

c.

Wax paper

d.

Teflon

Question number: 493

» Metals and Non-Metals

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MCQ▾

Question

Which of the following can be made in to wires?

Choices

Choice (4)Response

a.

Carbon

b.

Mercury

c.

Copper

d.

Sulphur

Question number: 494

» Synthetic Fibres and Plastics

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MCQ▾

Question

A material which gets decomposed easily by the action of microbes is called

Choices

Choice (4)Response

a.

Degradable substance

b.

Non-biodegradable substance

c.

Biodegradable substance

d.

Question does not provide sufficient data or is vague

Question number: 495

» Synthetic Fibres and Plastics

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MCQ▾

Question

Identify the names from the given clues

A synthetic fibre which looks like silk and obtained by chemical treatment of Wood pulp

Choices

Choice (4)Response

a.

Terylene

b.

Nylon

c.

Polyester

d.

Rayon

Question number: 496

» Metals and Non-Metals

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MCQ▾

Question

Megha got a magnesium ribbon from the science lab. She burnt it, took the ash and mixed it in water. Then she tested the solution with a litmus paper. Red litmus paper turned blue. This shows that

Choices

Choice (4)Response

a.

The solution is neither acidic nor basic

b.

The solution is acidic in nature

c.

The solution is basic in nature

d.

Question does not provide sufficient data or is vague

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