Chemistry (NSTSE (National Science Talent Search Exam- Unified Council) Class 10): Questions 1 - 8 of 150

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Question number: 1

» Chemistry » Periodic Classification of Elements

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Question

d – block elements is long term of periodic table are placed?

Choices

Choice (4) Response

a.

On the extreme right

b.

In the bottom

c.

In the middle

d.

On the extreme left

Question number: 2

» Chemistry » Chemical Reactions and Equations

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Question

Select the reaction which is completely balanced?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 3

» Chemistry » Acids, Bases and Salts

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Question

Select the weak acid among the following mineral acids?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 4

» Chemistry » Periodic Classification of Elements

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Question

An element having electronic configuration …………. . is most electropositive?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 5

» Chemistry » Chemical Reactions and Equations

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Question

Which of the following chemical equation is not balanced?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 6

» Chemistry » Chemical Reactions and Equations

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Question

What are formed as a result of a chemical reaction?

Choices

Choice (4) Response

a.

Reactants

b.

Compounds

c.

Products

d.

Mixtures

Question number: 7

» Chemistry » Chemical Reactions and Equations

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Question

The reaction in which an atom or group of atoms present in a molecule displaced by another atom?

Choices

Choice (4) Response

a.

Decomposition reaction

b.

Synthesis

c.

Displacement reaction

d.

Double displacement reaction

Question number: 8

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

is………………. . reaction?

Choices

Choice (4) Response

a.

Decomposition reaction

b.

Displacement reaction

c.

Double displacement reaction

d.

Combination reaction

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