BT-101 (GS) – Engineering Chemistry
• Attempt any five questions.
• All questions carry equal marks.
a)Unit 1What is the principle of EDTA method? Explain the estimation of total hardness of water by complexometric method.
What is the principle of EDTA method? Explain the estimation of total hardness of water by complexometric method.
b)Unit 1Calculate the total hardness of a water sample which shows following analysis : Ca(HCO3)2 = 4.86 mg/L; Mg(HCO3)2 = 5.84 mg/L; CaSO4 = 6.8 mg/L and MgSO4 = 8.4 mg/L.
Calculate the total hardness of a water sample which shows following analysis : Ca(HCO3)2 = 4.86 mg/L; Mg(HCO3)2 = 5.84 mg/L; CaSO4 = 6.8 mg/L and MgSO4 = 8.4 mg/L.
a)Unit 2What is Caustic embrittlement? How do you prevent it?
What is Caustic embrittlement? How do you prevent it?
b)Unit 1How is portable water disinfected by ozonation?
How is portable water disinfected by ozonation?
Unit 3Write a note on lubricants with special reference to their (i) classification (ii) mode of action with examples and uses.
Write a note on lubricants with special reference to their (i) classification (ii) mode of action with examples and uses.
a)Unit 4What is the difference between free radical and ionic polymerization?
What is the difference between free radical and ionic polymerization?
b)Unit 4Write a note on preparation, properties and uses of:
i) Bakelite
ii) NYLON 6,6
Write a note on preparation, properties and uses of:
i) Bakelite
ii) NYLON 6,6
a)Unit 5Differentiate the following with suitable examples. a) Galvanic series and Electrochemical series.
Differentiate the following with suitable examples. a) Galvanic series and Electrochemical series.
b)Unit 4Differentiate the following with suitable examples. b) Thermosetting polymers and Thermoplastic polymers.
Differentiate the following with suitable examples. b) Thermosetting polymers and Thermoplastic polymers.
a)Unit 6What is Spectroscopy? Describe the principle, instrumentation process of vibrational and rotational spectroscopy.
What is Spectroscopy? Describe the principle, instrumentation process of vibrational and rotational spectroscopy.
b)Unit 6Explain about Lambert and beer's law.
Explain about Lambert and beer's law.
Unit 2Describe about the following:
i) Zeolite process
ii) ion-exchange process with neat diagram
Describe about the following:
i) Zeolite process
ii) ion-exchange process with neat diagram
Unit 5, Unit 6, Unit 7Write brief note on (Any two):
i) Phase diagram of single component systems
ii) Electronic transitions
iii) Vibrational modes in IR spectroscopy
iv) Electro negativity
Write brief note on (Any two):
i) Phase diagram of single component systems
ii) Electronic transitions
iii) Vibrational modes in IR spectroscopy
iv) Electro negativity