NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1384 - 1389 of 1484

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Question number: 1384

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

Lanthanide contraction explains?

Choices

Choice (4) Response

a.

Size of the atoms of the series

b.

Density of the series

c.

Atomic volume of the series

d.

Chemical activity of the series

Question number: 1385

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The correct order of atomic or ionic size is?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1386

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

A reaction in which substances undergo change to produce new substances with new properties is called?

Choices

Choice (4) Response

a.

A physical reaction

b.

A biochemical reaction

c.

A chemical reaction

d.

A nuclear reaction

Question number: 1387

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The correct order of relative stability of half filled and completely filled shell is?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1388

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

Name the reaction does a solid get separated from the solution?

Choices

Choice (4) Response

a.

Redox reaction

b.

Precipitation reaction

c.

Neutralisation reaction

d.

Question does not provide sufficient data or is vague

Question number: 1389

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

Which of the following reaction is known to be a decomposition reaction?

Choices

Choice (4) Response

a.

b.

c.

d.

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