Chemistry - Jun 2014

First Year Engineering (Semester 1)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) Explain Zeolite process. (7 marks) 1 (b) Give preparation and use of Nylon-6 6 (4 marks) 1 (c) Explain in brief Thermal Insulator(3 marks) 2 (a) What do you mean by air pollution? Write note on Green House Effect.(7 marks) 2 (b) What is hardness? Differentiate between temporary and permanent hardness. How can we remove temporary and permanent hardness?(4 marks) 2 (c) What do you mean by Chromatography? Give it principle. Give outline of classification of chromatography.(3 marks) 3 (a) Discuss Type of Polymerization Reaction with suitable examples. (7 marks) 3 (b) Explain briefly Non Ferrous Alloy.(4 marks) 3 (c) Write difference between scale and sludge.(3 marks) 4 (a) Explain briefly Galvanic Corrosion.(7 marks) 4 (b) Discuss type of fuel with suitable example.(4 marks) 4 (c) What is Refractory? Give classification of refractory with suitable examples.(3 marks) 5 (a) Discuss concept, advantages and uses of electro plating.(7 marks) 5 (b) Give application of Biotechnology in following fields. Agriculture, Medicine, Food quality(4 marks) 5 (c) Write note on fibres made from natural sources with suitable examples.(3 marks) 6 (a) Discuss physical properties of metal. Write note in detail on heat treatment of steel.(7 marks) 6 (b) What are the characteristics of a good fuel? Give advantages of CNG over LPG.(4 marks) 6 (c) Give classification of Lubricants with suitable examples. (3 marks) 7 (a) Write note on Portland cement. Describe Wet process of manufacture of Portland cement with chemical reaction involved in it.(7 marks) 7 (b) Explain in brief Waterline corrosion. (4 marks) 7 (c) What are renewable and nonrenewable energy sources? Explain with suitable examples.(3 marks)