Physical Pharmacy

Question 1

What are the types of binding forces?

Answer 1

Intramolecular forces
Intermolecular forces

Question 2

What is the Intramolecular forces? And what its categorized?

Answer 2

forces between atoms of a molecule and its categorized :
1)Ionic bonding
2)Covalent bonding
3) Metallic bonding

Question 3

What is ionic bonding?

Answer 3

formed between positively and negatively charged ions, there is a transfer of electron from one atom to another (between metals and non-metals, i.e. Silver chloride AgCl ).

Question 4

Where is ionic bond formed?

Answer 4

formed between positively and negatively charged ions (between metals
and non-metals

Question 5

What is Covalent bonding?

Answer 5

a chemical bond that involve sharing of electrons between atoms, it is weaker than ionic bond.

Question 6

Covalent bonding involves ?

Answer 6

sharing of electrons between atoms

Question 7

Which one is more stronger between 3 types of intramolecular forces?

Answer 7

The ionic bonding is more stronger than other types then covalent bonding and at the end Metallic bonding

Question 8

What is the Metallic bonding?

Answer 8

is a type of chemical bonding between two or more metal atoms, which arises from the attraction between positively charged metal nuclei and their delocalized valence electrons.

Question 9

Where was the metallic bonding formed?

Answer 9

Between two or more metal atoms which arises from the attraction between positively charged metal nuclei and their delocalized valence electrons

Question 10

What are the Intermolecular Forces?

Answer 10

Are the electrostatic forces of attraction between molecules in a compound generally they are weaker than intramolecular forces.

Question 11

Which one of these two more weaker than other inter or intramolecular forces ?

Answer 11

Intermolecular forces weaker than intramuscular forces

Question 12

Why Intermolecular forces are important ?

Answer 12

because they affect the compound’s physical properties and characteristics like melting point, boiling point, vapo melting point, boiling point, vapor pressure e melting point, boiling point, vapor pressure viscosity and solubility

Question 13

What are the types of Intermolecular Forces?

Answer 13

Van der Waals Forces
Ion-dipole forces
Hydrogen bond

Question 14

Where was van der waals formed?

Answer 14

between polar molecules in which a given dipoles interact with one another (dipole-dipole interactions).

Question 15

Where was Ion-dipole forces formed?

Answer 15

between ions and dipoles. They are typically found n ions and dipoles. They are typically found in solutions containing ions

Question 16

What is hydrogen bond?

Answer 16

is a type of chemical bond that involves the electrostatic attraction between a hydrogen atom and an atom containing a lone pair of electrons

Question 17

Where was hydrogen bond formed?

Answer 17

between a hydrogen atom and an atom containing a lone pair of electrons

Question 18

Characteristics of Hydrogen Bond?

Answer 18

-A weak force of attraction between molecules, but Stronger than Van der waals bond
-Alters the physical properties of the molecules. For example, it increases the melting and boiling point of a substance, thereby making it less volatile

Question 19

Gaseous state has shape but don’t has volume.T/F

Answer 19

False , no volume no shape

Question 20

Liquid state retain volume, but not shape.T/F

Answer 20

True

Question 21

Solid state retain volume and no shape. T/F

Answer 21

Fulse , its has shape

Question 22

Gases can be expanded easily, therefore gases can fill containers and take their volume and shape. T/F

Answer 22

True

Question 23

Gases have much higher densities than liquids and solids.T/F

Answer 23

False,lower densities

Question 24

Why the gas is most compressible state of matter ?

Answer 24

Because there is a lot of free space in a gas.

Question 25

Silver chloride AgCl is example for any type of bond?

Answer 25

Ionic bond