Question # 1

positive ion hare formed by _________ of electrons.

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Gain

Loss

Sharing

Bonding

One amu (atomic mass unit) is equivalent to:

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1.66x10^-24 mg

1.66x 10^-24g

1.66x10 g

1.66x10^-23mg

................. can be decomposed into simpler substanmce.

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Compound

Element

Solution

Mixture

Free radical is a

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Extremely stable

Extremely reactive

Extremely inert

All of these

_________ which occupies space and have mass.

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Matter

Atom

Molecule

All of above

All chemists invented all except:

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Beakers

Spirit lamp

Funnels

Retorts

H2O is what type of molecules it is:

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Manoatomic

Polyatomic

Pentaatomic

Nil

The study of hydrocarbons and their derived compounds is called

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Physical chemistry

Inorganic chemistry

Organic chemistry

Biochemistry

Neutrons have _________ charge.

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+

_

No

Nil

The fundamental unit of elements is ___________

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Molecule

Atom

Matter

Mixture

Salt & water is a _________ mixture.

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Homogeneous

Heterogeneous

It is not mixture

Nil

The symbol of lead us

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As

Pb

Sb

Na

____________ Metals are electronegative in nature.

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Pure-

Noble-

Non-

Nil

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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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