NSO Level 1- Science Olympiad (SOF) Class 8: Questions 455 - 459 of 1175

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Question 455

Question

MCQ▾

Some of the most common blended fabrics are given in the questions. Find out the benefit of the blend over individual fabric.

Jute fibre is used to make

Choices

Choice (4)Response

a.

Gunny bags

b.

Fabric

c.

Decorative articles

d.

All a., b. and c. are correct

Question 456

Question

MCQ▾

Options are given in the jumbled form. Reshuffle the spellings and identify the correct options.

A thermosetting plastic

Choices

Choice (4)Response

a.

Relyente

b.

Yopetlers

c.

Yoln

d.

Lemanemi

Question 457

Question

MCQ▾

The non-metal essential for life is

Choices

Choice (4)Response

a.

Bromine

b.

Graphite

c.

Iodine

d.

Carbon

Question 458

Question

MCQ▾

Mother gave Meena two small pouches containing iron fillings and coal and asked her to crush both to a fine powder. She could make a fine powder of coal but could not powder iron fillings. The reason behind it is

Choices

Choice (4)Response

a.

Iron is a metal and coal is a non-metal

b.

Metals are hard and non-metals are soft and brittle

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question 459

Question

MCQ▾

A purple coloured non-metal forms a brown solution in acid which is used as an antiseptic is

Choices

Choice (4)Response

a.

Chlorine

b.

Iodine

c.

Helium

d.

Bromine

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