NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1910 - 1917 of 2028

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Question 1910

Question

MCQ▾

Which of the following metals is known for its best conductivity?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1911

Question

MCQ▾

Which fraction of petroleum has highest boiling point?

Choices

Choice (4)Response

a.

Diesel oil

b.

Kerosene

c.

Ether

d.

Gasoline

Question 1912

Question

MCQ▾

Oxides or hydroxides and ________ will be found when metal react with water?

Choices

Choice (4)Response

a.

Oxygen

b.

Hydrogen

c.

Carbon dioxide

d.

None of the above

Question 1913

Question

MCQ▾

Combustions are ________

Choices

Choice (4)Response

a.

Explosive

b.

Spontaneous, rapid, explosive

c.

Spontaneous only

d.

Question does not provide sufficient data or is vague

Question 1914

Question

MCQ▾

Which of the following is involved in the process of an anaerobic fermentation?

Choices

Choice (4)Response

a.

Petroleum

b.

Coal gas

c.

Water gas

d.

Biogas

Question 1915

Question

MCQ▾

Which of the following metal has the capability of gaining electron as well as losing an electron?

Choices

Choice (4)Response

a.

b.

Calcium Ca

c.

Mercury Hg

d.

Question 1916

Question

MCQ▾

Select the non-combustible substance from the following substances?

Choices

Choice (4)Response

a.

Coal

b.

Coke

c.

Wood

d.

Diamond

Question 1917

Question

MCQ▾

The fire goes off when sand is poured over some other burning material, it is because of?

Choices

Choice (4)Response

a.

The air supply is cut-off

b.

Sand is bad conductor of heat

c.

The temperature is brought down by sand

d.

Question does not provide sufficient data or is vague

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