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Pharmaceutical Chemistry 2 Important Questions. We covered all the Pharmaceutical Chemistry 2 Important Questions in this post for free so that you can practice well for the exam.
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Pharmaceutical Chemistry 2 Important Objective Questions for Students
NaCl is added to water while boiling eggs it will
(A) Decrease the B.P. of water
(B) Increase the B.P. of water
(C) Prevent the breaking of eggs
(D) Make eggs tasty
Option b – Increase the B.P. of water
Depression in freezing point of 0.01 M aq. solution of urea, sodium chloride, and sodium sulfate is in the ratio
(A) 1 : 1 : 1
(B) 1 : 2 : 3
(C) 1 : 2 : 4
(D) 2 : 2 : 3
Option b – 1 : 2 : 3
4 g of solute dissolved per liter at 27°C. The osmotic pressure of the solution is
(A) 0.1 atm
(B) 0.3 atm
(C) 0.4 atm
(D) 0.9 atm
Option c – 0.4 atm
If liquids A and B form an ideal solution then
(A) the Enthalpy of mixing is zero
(B) the Entropy of mixing is zero
(C) the Free energy of mixing is zero
(D) the Free energy and entropy both are zero
Option a – the Enthalpy of mixing is zero
The vapor pressure of benzene at 80°C is lowered by 10 mm when 2 g of a nonvolatile substance is dissolved in 78 g benzene. (V.P. of benzene = 750 mm) The molar mass of the solute is
(A) 15
(B) 150
(C) 1500
(D) 148
Option d – 148
The VP of pure ethanol and methanol is 42 mm and 88.5 mm respectively. An ideal solution. formed by mixing 46 g of ethanol and 16 g of methanol. The mole fraction of methanol is
(A) 0.467
(B) 0.502
(C) 0.647
(D) 0.556
Option c – 0.647
Van’t Hoff factor (i) for a compound that undergoes dissociation in one solvent and association in another solvent is respectively
(A) Less than one and less than one
(B) Greater than one and less than one
(C) Greater than one and greater than one
(D) Less than one and less than one
Option b – Greater than one and less than one
An aqueous solution is 1.00 molal in KI. Which change will cause the vapor pressure of the solution to increase?
(A) Addition of NaCl
(B) Addition of Na2SO4
(C) Addition of 1.00 molal KI
(D) Addition of water
Option d – Addition of water
The vapor pressure of water depends on
(A) the Surface area of the container
(B) the Volume of the container
(C) the Temperature
(D) None of above
Option c – the Temperature
We covered all the pharmaceutical chemistry 2 important questions above in this post for free so that you can practice well for the exam.
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