NSO Level 1- Science Olympiad (SOF) Class 7: Questions 593 - 597 of 597

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Question 593

Appeared in Year: 2012

Question

MCQ▾

Charkha is used for ________.

Choices

Choice (4)Response

a.

Knitting

b.

Weaving

c.

Ginning

d.

Spinning

Question 594

Question

MCQ▾

Who Discovered Electron?

Choices

Choice (4)Response

a.

Max Plank

b.

E. Goldstein

c.

J. J. Thomson

d.

Chadwick

Question 595

Question

MCQ▾

Which are the method of separating components of a mixture?

Choices

Choice (4)Response

a.

Evaporation

b.

Chromatography

c.

Centrifugation

d.

All a., b. and c. are correct

Question 596

Question

MCQ▾

What is the Molecular Weight of NaCl?

Choices

Choice (4)Response

a.

58.4 u

b.

57 u

c.

56.8 u

d.

All of the above

Question 597

Question

MCQ▾

The Quality of petrol is expressed by which of the following term?

Choices

Choice (4)Response

a.

Octane Numbers

b.

Gold Numbers

c.

One mole of Carbon dioxide

d.

Avagardo Numbers

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