NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1479 - 1484 of 1484

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Question number: 1479

» Chemistry » Carbon and Its Compounds

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Question

Which gas is present in brisk effervescence, when carboxylic acid is treated with

Choices

Choice (4)Response

a.

Oxygen gas

b.

c.

Benzene

d.

Butane

Question number: 1480

» Chemistry » Carbon and Its Compounds

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Question

………. number of carbon atoms form a spherical molecule of Buckminster fullerene?

Choices

Choice (4)Response

a.

90

b.

40

c.

60

d.

80

Question number: 1481

» Chemistry » Carbon and Its Compounds

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Question

Vinegar is manufactured by mixing …. . percentage of acetic acid in water?

Choices

Choice (4)Response

a.

8%

b.

25%

c.

40%

d.

50%

Question number: 1482

» Chemistry » Metals and Non-Metals

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Question

Select the correct order from the following regarding their abundance in earth crust?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1483

» Chemistry » Carbon and Its Compounds

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Question

Which of the following is anionic part of a synthetic detergent?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1484

» Chemistry » Acids, Bases and Salts

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Question

Which is least basic from the given?

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

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