JNTU Exam Papers – I B.Tech Regular Examinations– Engineering Chemistry – May/Jun 2008

I B.Tech Regular Examinations, May/Jun 2008 ENGINEERING CHEMISTRY SET-IV 1. (a) Why is sterilization of water necessary? Discuss any two methods of sterilisation. (b) 0.5 g of CaCO3 was dissolved in dil.HCl and diluted to 1000 mL. 50 mL of this solution required 48 mL of EDTA solution for titration. 50 mL of hard water … Read more

JNTU Exam Papers – I B.Tech Regular Examinations– Engineering Chemistry – May/Jun 2008

I B.Tech Regular Examinations, May/Jun 2008 ENGINEERING CHEMISTRY SET-III 1. Write a short notes on the following: (a) Break – point chlorination (b) Dissolved oxygen (c) Hardness of water (d) Sedimentation and coagulation. 2. Write short notes on : (a) Priming and Foaming (b) Phosphate conditioning (c) Caustic embrittlement. 3. (a) What is oxidation corrosion … Read more

JNTU Exam Papers – I B.Tech Regular Examinations– Engineering Chemistry – May/Jun 2008

I B.Tech Regular Examinations, May/Jun 2008 ENGINEERING CHEMISTRY SET-II 1. (a) What is the principle of EDTA method? Explain the estimation of hardness of water by complexometric method. (b) Mention the dis-advantages of using hard water for industrical purpose. 2. Write short notes on : (a) Priming and Foaming (b) Phosphate conditioning (c) Caustic embrittlement. … Read more