Pharmaceutical Chemistry 2 Model Answer Paper. We covered all the Pharmaceutical Chemistry 2 Model Answer Paper in this post for free so that you can practice well for the exam.
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Pharmaceutical Chemistry 2 Model Objective Answer Paper for Students
The density of solid argon is 13.65 g/cm³ at -233°C. If the radius of the sphere of argon is 1.54 x 10-6 cm. What percentage of solid argon is apparently empty space? (Atomic mass of Ar = 40)
(A) 54%
(B) 82%
(C) 62%
(D) 48%
Option c – 62%
Vapour pressure of pure benzene and toluene 160 and 60 torr respectively. A mole fraction of toluene in the vapour phase in contact with an equimolar solution of benzene and toluene is
(A) 0.50
(B) 0.6
(C) 0.27
(D) 0.73
Option c – 0.27
The vapour pressure of a solution of a non-volatile solute is
(A) Directly proportional to the mole fraction of the solvent
(B) Inversely proportional to the mole fraction of the solute
(C) Inversely proportional to the mole fraction of the solvent.
(D) Directly proportional to the mole fraction of solute.
Option a – Directly proportional to the mole fraction of the solvent
An aqueous solution of ethanol has a vapour pressure
(A) Equal to water
(B) Equal to ethanol
(C) More than water
(D) Less than water
Option c – More than water
A binary solution of ethanol and cyclohexane is an example of
(A) Ideal solution
(B) Non-ideal solution with positive deviation
(C) Non-ideal solution with negative deviation
(D) Unpredictable behaviour
Option b – Non-ideal solution with positive deviation
Which is not a colligative property?
(A) Freezing point
(B) Lowering in vapour pressure
(C) Osmotic pressure
(D) Elevation of boiling point
Option a – Freezing point
The intermediate compound LiAg crystallizes in the cubic lattice in which both Li and Ag atoms have coordination number 8. The type of crystal is
(A) Simple cubic
(B) FCC
(C) BCC
(D) HCP
Option c – BCC
Which element is doped in silicon to form a p-type semiconductor?
(A) Ge
(B) As
(C) Se
(D) B
Option d – B
A face-centred cubic element has an edge length of 400 Pm with a density of 6.2 g/cm³. What is the molar mass of an element?
(A) 60
(B) 600
(C) 0.600
(D) 240
Option a – 60
Solubility is the amount of substance present in
(A) 100 g of a saturated solution
(B) In 100 g of solvent get a saturated solution.
(C) In 100 ml of solvent get a saturated solution.
(D) Present in one litre of the saturated solution.
Option d – Present in one litre of the saturated solution
Colligative properties of the solution depend upon
(A) the Number of solute molecules
(B) the Number of solute ions
(C) the Number of solute particles
(D) the Nature of the solvent.
Option c – the Number of solute particles
Which of the following is a colligative property?
(A) Boiling point
(B) Freezing point
(C) Vapour pressure
(D) Lowering in vapour pressure
Option d – Lowering in vapour pressure
For a solution, when the vapour pressure of the solution is equal to the partial vapour pressure of the solvent, means
(A) the Solution of dilute
(B) the Solute is nonvolatile
(C) the Solute is volatile
(D) the Both solute and solvent volatile
Option b – the Solute is nonvolatile
Relative lowering in vapour pressure is directly proportional to
(A) Mole fraction of solute
(B) Mole fraction of solvent
(C) Molality of solution
(D) Partial pressure of the solvent
Option a – Mole fraction of solute
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