10010
Reg. No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIRST/SECOND SEMESTER B.TECH DEGREE EXAMINATION, JULY 2016
Course Code: CY100
Course Name: ENGINEERING CHEMISTRY
Max. Marks: 100 Duration: 3 Hours

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PARTA
Answer all questions, each question carries 2 marks
Which of the following molecule can give an IR spectrum? Give reason. (a)H2 (0) ೫) (©) HCI

(५) Cla!
What are redox electrodes? Indicate the electrode reaction and electrode potential with a
suitable example.
Distinguish between the terms conductance and specific conductance.
What is Kevlar? Mention its two important properties.
Differentiate between HCV and LCV.
How does graphite acts as a lubricant?
In the deionisation process water is first passed through cation exchanger and then through
anion exchanger. Why?
A water sample contains 204 mg of CaSO, per litre. Calculate the hardness in terms of CaCO
equivalent?
PART 8

41191001" all questions, each question carries 3 marks
Derive Beer-Lambert’s law.

. Write the origin of electrode potentiai. Electrode potential of zinc is assigned a negative value,

whereas that of copper a positive value. Give reason.

. What do you mean by R; value in chromatography? Give the use of the term in the technique.

Give the structure and any two properties of ABS.

. What are the advantages of liquid fuels over solid fuels?

What is the significance of viscosity index of a lubricant? How can you calculate it?

140 BOD differs from COD?

. What do you understand by hardness of water? Distinguish between temporary and permanent

hardness of water.