Question # 1

Considering the electronic configuration of atoms which atom with the given atomic number will be the most stable one?

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6

8

10

12

Octet rule is:

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description of eight electrons

picture of electronic configuration

covalent bonding

attaining of eight electrons

Which one is not a tetraatomic molecular?

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H2O

H2O2

SO3

BCL3

Which one of the following is an electron deficient molecule?

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HN₃

BF₃

N₂

O₂

H8+ _ Cl8- , the charge on H is.

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_

+

Neutral

Nil

The bond in covalent compound is ________________

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Covalent

Ionic

Dative

Couple

All metals are solid at ________________ temperature.

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Room

High

Low

None

________________ cannot be seen by naked eye.

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Matter

Molecules

Solid

Liquids

"×" & "." Represent:

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Shells

Neutrons

Electrons

Atoms

Identify when pair has polar covalent bonds:

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O₂ and Cl₂

H₂O and N₂

H₂O and C₂H₂

H₂O and HCI

The no. of Ion pair/pairs in ammonia molecule is / are

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1

2

3

4

............. are sonorous.

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Metals

Solids

Metals

Force

Metals are ________________

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Liquid

Solid

Gas

Malleable

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9th Class Chemistry Chapter 4 Structure of Molecules English Medium KPK Boards Online Mcqs MCQs With Answers

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