NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1425 - 1432 of 1484

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Question number: 1425

» Chemistry » Carbon and Its Compounds

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Question

Which of the following organic compound present in “Dettol” the antiseptic?

Choices

Choice (4)Response

a.

b.

c.

Phenol

d.

Benzene

Question number: 1426

» Chemistry » Metals and Non-Metals

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Question

Which of the following metal is used as reducing agent in thermite process?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1427

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which observation is true from the following reactions

Choices

Choice (4)Response

a.

C is reduced

b.

Metal oxide oxidized

c.

Metal oxide reduced

d.

None of the above

Question number: 1428

» Chemistry » Acids, Bases and Salts

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Question

Which of the following acid is strongest acid?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1429

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Select the metal from the following that does not react with sulphuric acid ?

Choices

Choice (4)Response

a.

Zinc

b.

Iron

c.

Magnesium

d.

Gold

Question number: 1430

» Chemistry » Carbon and Its Compounds

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MCQ▾

Question

…… gas is used to convert an unsaturated hydro carbon into a saturated hydro carbon?

Choices

Choice (4)Response

a.

Bromine

b.

Hydrogen

c.

Oxygen

d.

Chlorine

Question number: 1431

» Chemistry » Carbon and Its Compounds

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MCQ▾

Question

Which of the following compound has IUPAC name Propan – 2 – ol?

Choices

Choice (4)Response

a.

Ethyl alcohol

b.

n – propyl alcohol

c.

Isopropyl alcohol

d.

n – butyl alcohol

Question number: 1432

» Chemistry » Acids, Bases and Salts

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MCQ▾

Question

what is the Lewis acid in the above reaction?

Choices

Choice (4)Response

a.

b.

c.

d.

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