This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
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B.Sc. (Part-IIT) Semester—YI Examination
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INDUSTRIAL CHEMISTRY (R/V)(Instrumental Methods of Chemical Analysis, Green Chemistry)
Time : Three Hours] [Maximum Marks : 80
Note :— (1) Question No. 1 is compulsory and carries 8 marks.
(2) Remaining questions carry 12 marks each.
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(3) Give chemical equations and draw diagrams wherever necessary.(4) Use of scientific calculator is allowed.
- (A) Fill in the blanks :
- The small quantity removed from the bulk for analysis is called __________
- Precision is defined as the degree of agreement between repeated measurement of __________ quantity.
- In all chromatographic techniques, difference in affinity involves the process of either adsorption or __________
- Anion exchangers are cross linked high molecular weight polymers containing __________ groups.
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2
- (B) Choose the correct alternatives :
- Paper chromatography is practically suitable for :
(a) Ion exchange (b) Partition--- Content provided by FirstRanker.com ---
(c) Adsorption (d) Size exclusion - Picric acid is __________ coloured dye.
(a) Red (b) Blue
(c) Black (d) Yellow - Which of the following is not the basic component of X-ray fluorescence instrumentation ?
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(a) Goniometer (b) Column
(c) Collimator (d) Diffracting crystal - In chromatography on stationary phase the substance gets :
(a) Reabsorbed (b) Absorbed
(c) Adsorbed (d) None of these
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2
- Paper chromatography is practically suitable for :
- (C) Answer in one sentence :
- Define ion exchange capacity.
- What is auxochrome ?
- Define sampling.
- What is a dye ?
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4
UNIT-I
- (a) Give an account of sampling techniques of gases. 4
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(b) Explain the terms :
(i) Mean deviation (ii) Relative standard deviation 4
(c) Discuss the types of errors. 4
OR - (p) Discuss the technique of volumetric analysis. 4
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(q) Explain the process of sampling of solids. 4
(r) Discuss :
(i) Standard deviation
(ii) Confidence limit. 4
UNIT-II
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- (a) Discuss the technique of paper chromatography. 4
(b) Give an account of thin layer chromatography with applications. 4
(c) Discuss the applications of HPLC. 4
OR - (p) Discuss the applications of chromatography in general. 4
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(q) Define chromatography. Give classification of chromatographic techniques. 4
(r) Explain the principle and techniques of Gas Liquid Chromatography (GLC). 4
UNIT-ITI
- (a) Explain the experimental requirements and factors affecting column efficiency. 6
(b) Discuss the techniques of solvent extraction. 6--- Content provided by FirstRanker.com ---
OR - (p) Define ion exchange. Discuss the ion exchange capacity of resins. 6
(q) Describe factors affecting solvent extraction and application of solvent extraction in industries. 6
UNIT-1V
- (a) Explain the technique of X-ray fluorescence with its applications. 6
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(b) Describe the principle, techniques and application of IR spectroscopy. 6
OR - (p) Give an account of elementary theory of flame photometry. 6
(q) Draw and explain X-ray fluorescence spectrophotometer. 6
UNIT-V
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- (a) How are dyes classified as acid and basic dyes ? 4
(b) Explain the preparation and uses of Indigo dye. 4
(c) Discuss the manufacture of aurine dye. 4
OR - (p) Discuss crystal violet dye with respect to its preparation and uses. 4
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(q) Explain chromophores and auxochromes. 4
(r) Describe the preparation of picric acid with uses. 4
UNIT-VI
- (a) Explain the goals of Green Chemistry. 6
(b) Discuss the principles of Green Chemistry. 6--- Content provided by FirstRanker.com ---
OR - (p) Explain the basic components of green chemistry as alternative starting materials and alternative product and target molecules. 6
(q) Explain the following
(i) Green solvent
(ii) Bio catalysis--- Content provided by FirstRanker.com ---
(iii) Green fuels. 6
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This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university