B.Pharmacy (Semester VI) Examination, 2017
(New CGPA)
PHARMACEUTICAL ANALYSIS IV
Day and Date Monday, 15-5-2017 Total Marks 70
Time 10.30 a.m. to 1.30 p.m.
1. Multiple Choice Questions/Objective type questions. (15×1=15)
The unit of conductance is
Ohm Mhos
Ampere Volts
solution is used for calibration of conductometer.
0.1 M KOH 1 M HCl
0.1 M KCl 0.1 M KBr
Ohms Law States that
I V/R R I/V
RV I None
Polarimetry is based on principle of
Optical rotation Translational motion
Gyration Vibrational motion
Specific refraction is independent of
Temperature Pressure
Both a and b None
electrode contains mercuric chloride.
Glass Saturated calomel
Silver-silver chloride Both b and c
Nujol is used in which of the following IR sampling
Pressed pellet technique Mull technique
Solid film technique Gases sampling technique
In thermogravimetry sample is heated to a constant weight
at each of series of increasing temperatures.
Isothermal Quasistatic
Dynamic Static
In TG sample weight is recorded as a function of time at
constant temperature.
Isothermal Quasistatic
Dynamic All of the above
10) Most useful IR rang for analytical purpose
0.76 2.1 2.5 50
2.5 15 15 200
11) X rays have
Short wavelength High frequency
Longest wavelength Both a and b
12) If fast moving electron rapidly decelerate, than rays produced are

Alpha rays Beta rays
Gamma rays X rays
13) Solvent that cannot be used in IR is
Water Alcohol
Acetone Cyclohexane
14) A combined glass electrode does not contain
AgCl Hg2Cl2
HCl Both a and b
15) Which of the following is not a reference electrode
Saturated calomel Silver-silver chloride
Normal hydrogen electrode Platinum
2. Answer any five.
Write a note on light sources used in IR spectrophotometer.
Write theory and application of X-ray diffraction.
Define Ohms law, conductance, specific conductance, equivalent conductance,
refractive index.
Explain construction and working of saturated calomel electrode.
Explain conductometric titrations of strong acid with strong base and weak
acid with strong base.
Enlist various types of detectors of IR and explain the working of thermocouple.
3. Answer any three. (3×10=30)
Explain principle technique of polarimetry. Write in detail instrumentation of
polarimetry with a neat labeled diagram.
Define thermogravimetry. Explain in detail factors affecting thermogravimetry.
Explain principle of IR spectroscopy. Write a note on finger print region of IR
spectroscopy and discuss factors affecting vibrational frequency.
Explain with neat labeled diagram construction, working and theory of Abbe's
refractometer.