Question # 1

The empirical formula of glucose is

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CHO

CH2O

C2HO

CHO2

All of the following are tri-atomic molecules except:

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H²

O³

H²O

CO²

Which of the following can be separated by physical means?

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Mixture

Element

Compound

Radical

Scientist used ___________ method.

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Scientific

Non-scientific

Bot

Non

Industrial chemistry deals with the manufacturing of compounds:

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in the laboratory

on micro scale

on commercial scale

on economic scale

___________ is a pure substance that can be broken down.

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Matter

Element

Mass

Mixture

_________ which occupies space and have mass.

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Matter

Atom

Molecule

All of above

There are _________ elements found till now .

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120

118

119

117

Electron _____________ energy when thy jump from higher to lower level.

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Absorb

Radiate

Nothing

Nil

O3, Ozone is _________ molecules.

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Homoatomic

Hetroatomic

Monoatomic

Nil

The symbol of barium is:

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Ba

Bi

Br

B

Free radical is a

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Extremely stable

Extremely reactive

Extremely inert

All of these

The fundamental unit of elements is ___________

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Molecule

Atom

Matter

Mixture

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9th Class Chemistry Chapter 1 Fundamentals of Chemsitry English Medium KPK Boards Online Mcqs MCQs With Answers

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