NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1841 - 1848 of 2028

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Question 1841

Question

MCQ▾

New moon is also known as:

Choices

Choice (4)Response

a.

Crescent

b.

Amavasya

c.

Purnima

d.

Waxing

Question 1842

Question

MCQ▾

Who mathematically proved that the planets revolve around the sun in elliptical orbits?

Choices

Choice (4)Response

a.

Isaac Newton

b.

Galilei Galileo

c.

Albert Einstein

d.

Johannes Kepler

Question 1843

Question

MCQ▾

Which type of distillation method is used to refine petroleum?

Choices

Choice (4)Response

a.

Distillation

b.

Destructive distillation

c.

Fractional distillation

d.

None of the above

Question 1844

Question

MCQ▾

Which of the following metal is known as noble metal?

Choices

Choice (4)Response

a.

Lithium

b.

Mercury

c.

Gold

d.

Caesium

Question 1845

Question

MCQ▾

Which of the following is a characteristic of a rocket fuel?

Choices

Choice (4)Response

a.

Should burn vapidly

b.

Light and compact

c.

High calorific value

d.

All a., b. and c. are correct

Question 1846

Question

MCQ▾

Identity the alloy of aluminium and ( magnesium metals ?

Choices

Choice (4)Response

a.

Alnico

b.

Duralumin

c.

t-metal

d.

Magnalium

Question 1847

Question

MCQ▾

What are the products formed when fuels burn, along with heat & light?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1848

Question

MCQ▾

Decay of metal by water, oxygen and other chemicals is called?

Choices

Choice (4)Response

a.

Amalgamation

b.

Oxidation

c.

Carbonisation

d.

Corrosion

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