B.Sc. II Entrepreneurship (Semester IV) (New-CBCS)
Examination, 2018
Industrial chemistry (paper VII)
Analytical and Industrial Aspects of Physical Chemistry
Day and Date Monday, 10-12-2018 Total Marks 70
Time 10.30 a.m. to 1.00 p.m.
1. Choose the correct alternative for the following and rewrite the sentence. 14
The e.m.f. of a concentration cell is determined by
Voltmeter Galvanometer
Potentiometer Ammeter
The rapid analysis, using flame photometry can be carried out for the
Alkali and alkaline earth metals Inert gases
Halides Rare earths
Opacity is defined as reciprocal of
Absorbance Transmittance
Reflection None of these
The relation EG E0G 0.0591 pH gives the potential of
electrode.
Hydrogen Calomel
Quinhydrone Glass
The equation It I010-αt represents
Lambert's law Beer's law
Avogadro's law None of these
If transport number of cation is 0.5, then that of anion is
1.5 0.5 0.05 0.00
Seat
No. Set P
P.T.O.
To determine the cell constant, electrolyte is used.
HCI NaCI
H2SO4 KCI
Which of the following method gives exact end point
Classical First derivative
Second derivative All of these
In premix burner
All sample is used
50% of the sample is used
Nearly 95% of the sample is used
Only of the sample is used
10) The unit of cell constant is
S S Cm-1 Cm Cm-1
11) Optical density D is given by the expression
D log It/Io D log Io/It
D log Io/Io D log It/It
12) When the end points of potentiometric titration are obtained by plotting
ΔE/ΔV against volume V of the solution then it is called
First derivative method Second derivative method
Third derivative method None of these
13) When the temperature of flame is increased, the intensity of emitted
radiations
Decreases Increases
First decreases Remains constant
14) One Faraday is equal to
9650 C 96.500 C 9.5000 C 96500 C
SLR-SK 29 *SLRSK29*
Set P
2. Write any seven from the following 14
Give the block diagram of flame photometry.
ii) Explain electronic and electrolytic conductor.
iii) Write use of filter in colorimetry.
iv) Give the advantages of conductometric titration.
Define pH and pOH.
vi) Sketch dip type conductivity cell.
vii) Give different characteristics of burner.
viii) Define molar extinction coefficient and specific extinction coefficient.
ix) Write a note on advantages of quinhydrone electrode.
3. Write any two from the following 10
State and explain Lambert's law.
ii) With neat labeled diagram explain calomel electrode.
iii) What are the limitation of flame photometry
Describe any two factors influencing transport number. 4
4. Write any two from the following. 14
Explain diagrammatically basic circuit of wheatstone bridge.
Describe single cell photoelectric colorimeter.
Give different characteristics of flame. Describe premix burner.
5. Write any two from the following. 14
Mention different type of potentiometric titrations. Explain acid-base
titration.
Define specific conductance and equivalent conductance. The specific
conductance of N/5 solution of ZnSO4 at 298 k is 0.02107 ohm-1 cm-1.
Calculate equivalent and molecular conductance of ZnSO4 solution.
Mention different types of conductometric titration. Explain conductometric
titration between strong acid and weak base.