Question # 1

Metal have the tendency to lose elecrons due to.

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High ionization energies

Low ionization energies

Low electron affinity

None of the above

Which metal has the lowest melting point?

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Li

Na

Rb

K

Hydrogen and Helium follow.

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Octet rule

Triple rule

Duplet rule

None of these

Whcih compound contains both covalent and ionic bonds.

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MgCl₂

PCl5

NH₄Cl

CaO

Which molecule contains a single vovalent bond.

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CH4

C2H4

C2H2

O2

The formaton ionic bond between two ions is due to.

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Hydrogen bonding

Metalic force

Electrostatic forces

All of the above

Attaining two electrons in the valence shell is called.

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Octet rule

Duplet rule

Triplet rule

All of these

How many valance shell electrons are there in Na+ ion.

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8

9

1

10

Whcih types of bond is present between NH3 and BF3

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Covalend Bond

Ionic Bond

Co ordinate covalent bond

Metallic Bond

The boiling point of water is

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O ^oC

100 ^oC

35 ^oC

25 ^oC

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

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

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Cl2

H2

O2

HCl

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

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