Question # 1

Hydrogen and Helium follow.

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Octet rule

Triple rule

Duplet rule

None of these

In metals, the hold of nucieus over the valence shell elecrons is veak due to.

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Highlectron affinity

Large sized atoms

High ionization energies

All of the above

Hydrogen bound ing is always found in

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Non-polar molecules

Homoatomic molecules

Polar Molecules

All of the above

Number of electronsin nitrogen molecule is.

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2

4

6

8

Whcih one of the following is the weakest force among the atoms.

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Intermolecular force

Ionic force

Metallic force

Covelent forces

The formaton ionic bond between two ions is due to.

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Hydrogen bonding

Metalic force

Electrostatic forces

All of the above

The compund formed by oppoite charges are known as.

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Metallic solids

Ionic compounds

Non-polar Covalent compound

None of the above

In the formation of AlF₃, aluminum atom loses........electrons.

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1

4

3

2

None polar compounds are insoluble in

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Alcohol

Benzene

Ether

Water

Which types of attractive forces are presentin ionic compounds.

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Covalent bonds

Electrostatic forces of attraction

Mtallic bonds

Coordinate covalent bonds

A covalent bond formed by two similar stoms is known as.

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Polar Covalent bond

Metallic bond

Double covalent bond

Non-polar covalent bond

Which of the following is an exampel of polar covalent compound.

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Cl2

H2

O2

HCl

A bond formed by the mutual sharing an electron pair is called.

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Ionic bond

Metallic bond

Covalent bond

Coordinate covalent bond

Water has high boiling point as compared a alcohol due to

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Low density

High surface tension

Hydrogen bonding

High vapour pressure

A bond pair is covalent molecules usually has.

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One electron

Two electron

Three electron

Four electron

How many electrons are involved in the formation of signle covalent bond

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One

Two

Three

Four

Identify the covalent compund

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NaCl

H₂O

KF

MgO

The boiling point of water is

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O ^oC

100 ^oC

35 ^oC

25 ^oC

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Chemistry 9th Class English Medium Unit 3 Online Test MCQs With Answers

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