NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1377 - 1383 of 1484

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Question number: 1377

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

Name the reaction in which the addition and the removal of oxygen takes places simltaneously?

Choices

Choice (4) Response

a.

Precipitation reaction

b.

Oxidation reaction

c.

Reduction reaction

d.

Redox reaction

Question number: 1378

» Chemistry » Periodic Classification of Elements

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Question

The diamagnetic species among the following is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1379

» Chemistry » Acids, Bases and Salts

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Question

………… acid is used in lead storage batteries?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1380

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The properties of the elements are periodic function of their atomic numbers. This statement was given by?

Choices

Choice (4) Response

a.

Mendeleev

b.

Moseley

c.

Bohr

d.

Dorberiner

Question number: 1381

» Chemistry » Acids, Bases and Salts

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Question

Name the calcium compound which does not increase the of acidic solution?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1382

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

If we go from to in the second period, there would be a decrease in?

Choices

Choice (4) Response

a.

Electronegativity

b.

Atomic radii

c.

Ionization enthalpy

d.

Atomic mass

Question number: 1383

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The correct order of increasing electron affinity of halogen is?

Choices

Choice (4) Response

a.

b.

c.

d.

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