B 0000CYT100121902 Pages: 3

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

First Semester B.Tech Degree Regular and Supplementary Examination December 2020 (2019 scheme)

Course Code: CYT100
Course Name: ENGINEERING CHEMISTRY
(2019-Scheme)

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 3 marks. Marks
1 What will be the standard electrode potential of Ni2* / Ni electrode if the cell (3)

potential of the cell Ni / Ni**(1M) // ೮0.101) / Cu is 0.59 V at 25 °C?
2 0.34 ५

2 Briefly explain the principle of electroless plating. (3)
3 Give the mechanism of interaction of electromagnetic radiation with oscillating (3)

dipole.
4 State Beer-Lambert’s law and write the differential form. (3)
5 Write any three differences of TGA and DTA. (3)
6 Explain sol-gel method for the synthesis of nano particles (3)
7 Determine the configuration of the following alkenes as E or Z: (3)

H3C CH,OH 66115 COOH

)حر سر
‎H cl H CH,‏
‎A B‏
‎Mention any three advantages of OLEDs over LED and LCD. (3)‏ 8
‎Explain disinfection by chlorination. (3)‏ 9
‎Compare BOD and COD. (3)‏ 10
‎PART 13‏
‎Answer one full question from each module, each question carries 14 marks‏
‎Module-I‏

11 a) Explain the mechanism of electrochemical corrosion in different environmental (10)

conditions.

b) How is the cell constant of a conductivity cell measured? (4)

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