NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1354 - 1360 of 1484

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Question number: 1354

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The paramagnetic species among the following is?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1355

» Chemistry » Acids, Bases and Salts

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MCQ▾

Question

Which of the following acid is used in manufacture of glass?

Choices

Choice (4) Response

a.

Ascorbic acid

b.

Tartaric acid

c.

Phosphoric acid

d.

Boric acid

Question number: 1356

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

Which of the following substances take a part in a chemical reaction?

Choices

Choice (4) Response

a.

Products

b.

Reactant

c.

Mixture

d.

Compound

Question number: 1357

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The elements with atomic numbers 10,18,36,54 and 86 are all?

Choices

Choice (4) Response

a.

Inert gases

b.

Light metal

c.

Halogens

d.

Rare earths

Question number: 1358

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The elements in which electrons are progressively filled in 4f – orbitals are called?

Choices

Choice (4) Response

a.

Lanthanoids

b.

Noble metals

c.

Cholcogens

d.

Actinoids

Question number: 1359

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The first ionization enthalpies of are in the order of?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1360

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

By observing the reaction, which of the following is true?

Choices

Choice (4) Response

a.

is being oxidized

b.

is being reduced

c.

is being reduced

d.

in being oxidized

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