Principles Of Pharmaceutical Sciences Solutions And Solubility.

Question 1

Which force us involved in solution formation?

A. Intermolecule force
B. Van-der-Waals force
C. Covalent bond
D. Atomic force

Answer 1

B. Van-der-Waals force

Question 2

b. When NaCl dissolved in water, which force is involved to form the solution?

A. Keesom force
B. Hydrogen bond
C. Ion-dipole interaction
D. Ion-ion interaction

Answer 2

C. Ion-dipole interaction

Question 3

Chemical structure influences solubility through all of the following Except.

A. Dielectric constant
B. Particle size
C. Dipole moment
D. Hydrogen bond

Answer 3

B. Particle size

Question 4

Which of the following solvents, is prepared by mixing equal(50%) volumes of Alcohol, USP, and Purified Water, USP?

A. Rubbing alcohol
B. Dehydrated alcohol
C. Diluted alcohol
D. USP alcohol

Answer 4

C. Diluted alcohol

Question 5

Lower concentration of particles in solution than cells which flows into the cells and it swells and may burst that causes hemolysis is called?

A. Hypertonic solution
B. Isotonic solution
C. Hypotonic solution
D. Osmotic solution

Answer 5

C. Hypotonic solution

Question 6

Forces between atoms lead to the formation of molecules and Ions, E.g., Covalent bond, ionic bond, etc. Is defined as:

A. Molecular force
B. Ion dipole force
C. Van-der-Waals forces
D. Atomic force

Answer 6

D. Atomic force

Question 7

Organic compounds with polar groups are soluble in water by forming hydrogen bonds. Which is not soluble in water?

A. -COOH
B. -CH3
C. -NH2
D. -OH

Answer 7

B. -CH3

Question 8

All the following are colligative properties EXCEPT:

A. Lowering of vapor pressure
B. Depression of freezing point
C. Elevation of boiling point
D. Spontaneous diffusion

Answer 8

D. Spontaneous diffusion

Question 9

Which are the isotonic solution that exert the same osmotic pressure as red blood cells?

A. 5% Glucose and 0.9% NaCl
B. 25% NaCl and 2% Glucose
C. 5% Glucose and 70% alcohol
D. 10% alcohol and 2% NaCl

Answer 9

A. 5% Glucose and 0.9% NaCl

Question 10

Which of the following is not a Vander Waals force?

A. Keesom forces
B. London forces
C. Debye forces
D. Bangla forces

Answer 10

D. Bangla forces

Question 11

The interaction between a molecule with hydrogen atom and strongly electronegative atom such as fluorine is defined:

A. Keesom force
B. London force
C. Hydrogen bond
D. onic bond

Answer 11

C. Hydrogen bond

Question 12

In case of, solid solute and liquid solvent, if the temperature increased the solubility:

A. Increase
B. No change occurs
C. Decrease

Answer 12

A. Increase

Question 13

Negative deviation of Rault’s law takes place if the:

A. Interaction between A-B is weaker than A-A or B-B.
B. Interaction between A-B is stronger than A-A or B-B.
C. Interaction between A-B, A-A, or B-B are equal.
D. Interaction between A-A is stronger than B-B.

Answer 13

B. Interaction between A-B is stronger than A-A or B-B.

Question 14

Chemical structure influences solubility through:

A. Dipole moment
B. Hydrogen bonding
C. Dielectric properties
D. All the other choices

Answer 14

D. All the other choices

Question 15

Atropine is a weak base and not soluble in acid, but soluble in water.

A. True
B. False

Answer 15

B. False

Question 16

p. Negative log value of H+ ion is defined as:

A. pH
B. pK
C. pI
D. pOH

Answer 16

A. pH

Question 17

When the solute and solvent both are liquid, the solubility decreases with the increase of temperature.

A. True
B. False

Answer 17

A. True