Question # 1

____________ Is drawn in wires.

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Gold

Silver

Helium

Nil

The number of isotopes of carbon are

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1

2

3

5

When an electronegative element combines electropositive element the type of bonding is

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covalent

ionic

polar covalent

coordinate covalent

1 torr = ?

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1 mm of Hg

1 atm

760 mm of Hg

1 pascal

Which has lowest density?

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liquids

Solids

Gases

Plasma

4th & 5th consist of ________________ elements.

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8

18

32

infinite

___________ is a pure substance that can be broken down.

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Matter

Element

Mass

Mixture

Which one is not a tetraatomic molecular?

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H2O

H2O2

SO3

BCL3

____________ solids are arranged in 3 dimension.

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Crystalline

Amorphous

Both

None

Which is an acceptor molecule/ion?

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N₂

O₂

H⁺

CH₄

The period of Alchemists extends from _________ AD.

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800 to 1800

600 to 1600

900 to 1900

700 to 1700

All metals are solid except

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AI

Mg

Na

Hg

The most abundant element occurring in the oceans is:

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Oxygen

Hydrogen

Nitrogen

Silicon

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9th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers

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