MSc Chemistry (Organic And Analytical) SEM I 2023 2024 Feb 2024 ANALYTICAL CHEMISTRY I Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 All questions are compulsory
2. Q2 Figures to the right indicate full marks
3. Q3 Use of logarithmic table/non-programmable calculator is allowed
4. Q4 At. Wts: H=1, C=12,N=14,0=16,Na=23 Cl=35.5, K=39,
5. Q1 Answer any two of the following: 10 marks
   • A. Define the terms:
   • B. is Kaizen? Explain the six steps involved
   • C. Discuss quantitative method of analysis with respect to calibration curve
   • D. Write note on basic safety in laboratory
6. Q2 Answer any two of the following: 10 marks
   • A. Calculate the pH of a 0.1 M NH4OH solution. Given Kp =
   • B. How much volume of a 1000 ppm K* solution, using KCl, is required to prepare 100 cm? of 0.02 M KCI solution
   • C. 16.98 g of AgNOs is treated with 6.5 g of NaCl, producing AgCl. Calculate the amount of AgCl produced, in grams. Which is the limiting reagent?
   • D. Determine the mole fraction of both the substances, when 45 g of acetone is mixed with 55 g of methanol Answer any two of the following: 10
   • A. Describe the use of Nernst Glower and the Globar in IR spectroscopy
   • B. Write short note on Near and Far region of IR spectra
   • C. In what way the Fourier Transform (FT) instruments differ from the
   • D. Describe the effect exerted by the pH and solvents on the Amax values in the absorption spectroscopic technique
7. Q4 Answer any two of the following: 10 marks
   • A. With the help of schematic diagram, discuss any one Differential
   • B. Discuss the applications of DSC for:
   • a) Drug analysis
   • b) Safety screening
   • C. Discuss the factors affecting DSC curves
   • D. Describe the role of multilayered films in automated analysis
8. Q5 Answer any five of the following: 10 marks
   • A. Define the figures of merit of Analytical methods:
   • a) Robustness b) LOD
   • B. is significance of government standards like HALLMARK and ISI
   • C. — Solid is dissolved in water at Its solubility is 1.25 x 10 Calculate the solubility product ( Ksp) of the compound
   • D. Assign oxidation number to each element in Cr(OH)4
   • E. schematic of optical arrangement of a dual wavelength
   • F. Describe any one method of sample preparation in recording IR spectra
   • G. Draw the schematic DSC thermogram, show the glass transition, exothermic and endothermic peaks
   • H. Enlist any four objectives of automation

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