Introduction

Question 1

What are the types of chemical bond?

Answer 1

2 types –
1) Interatomic Bond ( strong bond)
2) Intermolecular Bond (weak bond)

Question 2

Examples of strong bond?

Answer 2

1) Ionic bond
2) Covalent bond
3) Co - ordinate bond
4) Metallic bond

Question 3

Examples of intermolecular bonds?

Answer 3

1) Van der wall force
2) H-bond

Question 4

Types of H- bonds?

Answer 4

1) Intermolecular H- bond
2) Intramolecular H-bond

Question 5

Cause of chemical bonding?

Answer 5

1) To achieve noble gas configuration ( octet rule)
2) To lower potential energy of system
Stable - energy lowest

Question 6

Ionic bond is also called?

Answer 6

Electrovalent bond

Question 7

How Ionic bond is formed?

Answer 7

Metal + non - metal
By complete transfer of e-

Question 8

Which force is present in Ionic bonds?

Answer 8

Electrostatic force of attraction

Question 9

What is electrovalency ?

Answer 9

No of e- lost or gained

Question 10

Electrovalency of group 1?

Answer 10

1

Question 11

Electrovalency of group 2?

Answer 11

2

Question 12

Electrovalency of group 13?

Answer 12

3

Question 13

Electrovalency of group 14?

Answer 13

Absent

Question 14

Electrovalency of group 15 ?

Answer 14

3

Question 15

Electrovalency of group 16?

Answer 15

2

Question 16

Electrovalency of group 17?

Answer 16

1

Question 17

Electrovalency of group 3-group 12?

Answer 17

Variable EV

Question 18

Conditions for more ionic?

Answer 18

Metallic character increase
Non metallic character increase

Question 19

Trend of NMC across groups and periods?

Answer 19

Down the group - decreases
Across the period - increases

Question 20

Trend of metallic character down the group and across the period?

Answer 20

Increases down the group
Decreases across the period

Question 21

Physical state of ionic compound?

Answer 21

Solid

Question 22

MP & BP of ionic compounds?

Answer 22

Very high

Question 23

Conductivity of ionic compounds?

Answer 23

1) Bad conductors in solid state
2) Good conductors in molten and aqueous state

Question 24

Why ionic compounds don’t show isomerism?

Answer 24

Because of their non - directional nature

Question 25

Isomorphism meaning?

Answer 25

Similar formula

Conditions
1) similar formula
2) size of cation and anion nearly same

Question 26

Isomorphism examples?

Answer 26

1) NaCl MgCl
2) NaF MgO

same period
less difference in size

Question 27

Which are fast reactions, ionic or covalent?

Answer 27

Ionic Reactions

Question 28

Which reactions are precipitated reactions?

Answer 28

Ionic reactions

Question 29

Ionic reactions are organic or inorganic?

Answer 29

Inorganic

Question 30

Solubility of ionic reactions is related to which energy?

Answer 30

Hydration energy or
Solvation energy