NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1877 - 1883 of 2028

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Question number: 1877

» Chemistry » Coal and Petroleum

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MCQ▾

Question

Biogas is a mixture of?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1878

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Metals can be made into thin sheets. This property is termed as?

Choices

Choice (4)Response

a.

Ductility

b.

Strength

c.

Malleability

d.

Density

Question number: 1879

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following non-metal is liquid at room temperature?

Choices

Choice (4)Response

a.

Hydrogen

b.

Nitrogen

c.

Bromine

d.

Chlorine

Question number: 1880

» Chemistry » Coal and Petroleum

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MCQ▾

Question

Which of the following type of fuel will give smoke and ash on combustion?

Choices

Choice (4)Response

a.

Solid fuels

b.

Liquid fuels

c.

Gaseous fuels

d.

Question does not provide sufficient data or is vague

Question number: 1881

» Chemistry » Combustion and Flame

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MCQ▾

Question

When we observe LPG (Cooking gas) flame the “blue zone” indicates?

Choices

Choice (4)Response

a.

Un burn vapours

b.

Moderately hot

c.

Complete Combustion

d.

Partial decomposition

Question number: 1882

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Prevention of metal corrosion can done, when contact between metal and ________ in cut-off?

Choices

Choice (4)Response

a.

Hydrogen

b.

Carbon

c.

Oxygen

d.

Nitrogen

Question number: 1883

» Chemistry » Coal and Petroleum

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MCQ▾

Question

The slurry residue after obtaining biogas is used as?

Choices

Choice (4)Response

a.

Insecticide

b.

Pesticide

c.

Manure

d.

Question does not provide sufficient data or is vague

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