B.Pharm. (Semester (New CBCS) Examination, 2018
Pharmaceutical Analysis I
Day and Date Saturday, 5-5-2018 Max. Marks 75
Time 10.30 a.m. to 1.30 p.m.
1. Multiple Choice Questions (20×1=20)
According to Bronsted theory is a substance that can accept protons.
Acid Base
Buffer solution Both A and B
Non aq. titrations are based on
Arrhenius theory Bronsted Lawry theory
Lewis theory None of these
Absolute error is the difference between and
Measured value and True value Mean and True value
Both A and B None of these
Weakly acidic/basic substance analysed by
Aqueous titration Non aqueous titration
Redox titration Complexometric titration
is one that contains one mole of solute per kg of solution.
Molal solution Formal solution
Molar solution Normal solution
Which method is based on precipitation by adsorption indicators
Fajan's method Mohr's method
Volhard's method None of these
Halides can be determined by titrating with AgNO3 using an indicator.
Potassium chromate Phenolphthalein
Eosin Crystal white
Which masking agent is used for masking the aluminium and iron.
Thioglycerol Potassium cyanide
Triethanolamine Aluminium fluoride
analyte is separate from a solution of a sample as a precipitate and is converted to a compound of known composition.
Volatization Precipitation gravimetry
Electrogravimetry Precipitation point
10) If precipitation is contaminated by substance which are normally soluble in the solution under the condition of precipitation called
Coprecipitation Postprecipitation
Supersaturation None of these
11) Solubility of sparingly soluble salts can be determined by
Polarography Potentiometry
Conductometry IR Spectroscopy
12) There is linear relationship exist between the pH and of solution.
Colour Potential Turbidity None
13) Diffusion current can be correlated with different conditions by
Nerst equation Brags equation
Illkovic equation Beers equation
14) Residual current in polarography is due to
Oxidisable impurity Reducible impurity
Analyte All of these
15) A normal solution is which contains of substance per liter of solution.
One mole One gram equivalent
One gram mass One mililitre
16) The indicator which is used in standardization of 0.1 M sodium hydroxide IP
Methyl red Methyl orange
Phenolphthalein Crystal violet
17) relates to the quality of an experiment.
Precision Standard deviation
Accuracy LOD and LOQ
18) Random error is also known as
Determinate error Indeterminate error
Operational error Both A and C
SLR-TA 2 *SLRTA2*
Set P
19) Most of the indicators are chemically weak acid/weak base is given by
Ostwalds theory Resonance theory
Quinonoid theory All of above
20) Application of permangnometry includes except
Assay of H2O2
Determination of nitrate and perchlorates
Ferrous sulphate and ferrous ammonium sulphate assay
As chelating agent for assay of calcium as oxalate
2. Long answers (Answer 2 out of (2×10=20)
Discuss theories of acid base. Justify pH of water is 7.
Write in brief about steps required in gravimetric analysis.
What is redox titration Explain various condition used in iodometric determination.
3. Short answers (Answer 7 out of
Define systemic error and explain in brief the types of systemic error.
What are leveling and differentiating solvents
Classify complexometric titration.
Write a note on limit test for sulphate.
Explain buffer. Explain mechanism of buffer action.
Define primary and secondary standard with example. Explain the assay procedure of ephedrine HCl.
Differentiate between Mohr's method and Volhard's method.
Explain how Dropping Mercury Electrode works
Write a note on sodium nitrite titration.