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Model Question Paper-2 with effect from 2021 (CBCS Scheme), , TIME: 03 Hours, , First Semester Engineering Degree Examination, Subject Title 21CHE12/22, , Max. Marks: 100, , Note: Answer any FIVE full questions, choosing at least ONE question from each, MODULE., MODULE 1, Define Single Electrode Potential. Obtain the expression for single electrode, potential., What are ions Selective Electrodes? Explain construction and working of, glass electrode, Write briefly the recycling of Li-ion battery by direct recycling method, OR, Explain the construction, working and applications of Li-ion batteries., Explain the experimental determination of PH using glass, Calculate the single electrode potential of Cu electrode at 27oC when the, standard potential of Cu is 0.34V and [ Cu2+] 0.1M, , Marks, , a, , Explain the following factors which affecting the rate of corrosion i) Ratio of, anodic and cathodic areas ii) nature of corrosion product, , 7, , b, , What is anodizing? Explain the process of anodizing of Al, What is electroless plating? Distinguish between electro and electroless, plating., OR, What is meant by metal finishing? Mention (any five) technological, importance of metal finishing., A thick steel sheet of area 400 cm2 is exposed to air near the ocean. After a, one year period it was found to experience a weight loss 375 g due to, corrosion. If the density of the brass is 7.9g/cm2 calculate the corrosion, penetrating rate in mpy and mm/y ( given K= 534 in mpy and 87.6 in mm/y), What is cathodic protection? Explain sacrificial anode and impressed, voltage methods of cahtodic protection, , 6, , a, Q.1, , b, c, , Q.2, , a, b, c, , Q.3, , c, a, Q.4, , b, c, , a, Q.5, , b, c, , MODULE 3, What are polymer composites? Explain the synthesis and application of, Kevlar fibre, What are conducting polymers? Explain the various factors influencing the, conduction in organic polymers., Briefly explain the carbon nanotubes with properties and applications., , 7, 7, 6, 6, 7, 7, , 7, 6, 7, 7, , 7, 7, 6

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a, Q.6, , b, c, , Q.7, , a, b, c, a, , Q.8, , b, c, a, b, , Q.9, c, a, Q.10, , b, c, , OR, Explain optical and electrical properties of nanomaterials., What are nanomaterials? Explain the synthesis of nanomaterials by, precipitation method, What are Biodegradable polymers? Explain the properties and applications of, Polylactic acid., MODULE 4, Briefly explain any six basic principles of green chemistry., Explain the following i) Phase transfer catalyst ii) Solvent free reaction, With a neat diagram explain the production of Hydrogen by Photocatalytic, method, OR, Describe the hydrogen production by photo electrocatalytic method., Explain the synthesis of Paracetamol by conventional and green route from, phenol., Explain the construction and working of photovoltaic cells., MODULE 5, Explain the theory, instrumentation and applications of flame photometry., Write the principles and requirement of titrimetric analysis., In a COD test, 30.5 cm3 and 15.5 cm3 of 0.05 N FAS solutions were, consumed for blank & sample titration respectively. The volume of test, sample used was 25 cm3. Calculate the COD of the sample solution., OR, Explain the determination of hardness by EDTA method., Define the following units of standard solution., i) Molarity ii) Normality iii) ppm, Explain the theory and instrumentation of potentiometry., , 7, 6, 7, 6, 7, 7, 7, 7, 6, 7, 7, 6, 7, 6, 7

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Table showing the Bloom’s Taxonomy Level, Course Outcome and Program Outcome, , Question, , Q.1, , Q.2, Q.3, Q.4, Q.5, Q.6, Q.7, Q.8, Q.9, Q.10, , (a), , Bloom’s Taxonomy, Level attached, , L1,, L2, L2, L2, L1, L2, L3, L2, L2, L2, L1, L2, L2, L2, L2, L2, L2, L2, L2, L2, L2, L2, L2, L2, L2, L2, L2, L3, L2, L2, L2, , (b), (c), (a), (b), (c), (a), (b), (c), (a), (b), (c), (a), (b), (c), (a), (b), (c), (a), (b), (c), (a), (b), (c), (a), (b), (c), (a), (b), (c), , Bloom’s, Taxonom, y Levels, , Course, Outcome, , Program Outcome, , CO.1, , PO-1,2,12, , CO.1, CO.1, CO.1, CO.1, CO.I, CO.2, CO.2, CO.2, CO.2, CO.2, CO.2, CO.3, CO.3, CO.3, CO.3, CO.3, CO.3, CO.4, CO.4, CO.4, CO.4, CO.4, CO.4, CO.5, CO.5, CO.5, CO.5, CO.5, CO.5, , PO-1.2,12, PO-1,2,12, PO-1,2,12, PO1,2.12, PO-1, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO1, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1,2,12, PO-1, PO-1,2,12, PO-1,2,12, PO-1,2,12, , Lower order thinking skills, Understanding, Comprehension): 𝐿2, Higher order thinking skills, Analyzing (Analysis): 𝐿4 Valuating (Evaluation): 𝐿5, Remembering(, knowledge):𝐿1, , Applying (Application):, 𝐿3, Creating (Synthesis): 𝐿6