Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 4

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10th Manipur Board

IMPORTANT

Earn 100

Why does $H_{2}$ molecule exists while ${He}_{2}$ molecule does not exist?

Important Questions on Chemical Bonding

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10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 5

Why is

HF

polar while,

H_{2}

and

F_{2}

are not polar?

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10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>EXERCISES>Q 1

Define the terms 'valence shell' and 'valence electrons'.

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10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>EXERCISES>Q 2

Why do elements combine chemically?

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10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>EXERCISES>Q 3

What is an electrovalent bond and how it is formed?

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IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>EXERCISES>Q 4

What is covalent bond and how it is formed?

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10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>EXERCISES>Q 5

How does an ionic bond differ from a covalent bond? Illustrate your answer by giving examples of each type of bond.

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10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>EXERCISES>Q 6

What is polar molecule? Give example.

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10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>EXERCISES>Q 7

Give electron dot representation of

F_{2}

molecule.