Engineering chemistry
Previous year question paper with solutions for Engineering chemistry
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- What do you understand by spectroscopy?
- What do you understand by natural linewidth of a spectral line?
- What are the advantages of gaseous fuels?
- What is waterline corrosion?
- What are third generation petrochemicals?
- Explain nanochemistry.
- Give two examples of photochemical reactions having high quantum yield.
- λmax for two isomers (cis- and trans-) of stilbene (C6H5CH=CHC6H5) are 274 and 294 nm. Which isomer will have λmax of 294 nm? Explain.
- What is the usefulness of TMS as an internal standard?
- What are composite materials? Name two natural composites.
- What is saline water?
- Give the cause of corrosion.
- Name the two phases of chromatography.
- What are indicators? Give examples.
- Give the full name of MASERS and LASERS.
- What is ultraviolet and visible spectroscopy known as?
- What is NMR and MRS?
- What is a phase and a component?
- Give no of signals in Benzene and Nitrobenzene.
- Calculate the value of Einstein of energy in electron volts for radiation of frequency 3�1015.
- Define quantum yield.
- What is the basic principle of Chromatography? Give various types of liquid chromatography.
- How will distinguish chemically between soft and hard water?
- Despite of the involvement of radiations & matter in both, what are the differences between spectroscopy and photochemistry?
- How is supercooled water an example of metastable equilibrium?
- Write a note on photochemistry.
- Give the number of components, number of phases & number of degrees of freedom in a 9M aqueous solution of sulphuric acid (partly dissociated into hydrogen, bisulphite and sulphate ions) at 1 atm.
- What is conductivity water? Give its uses.
- Why should the presence of CO2 be avoided in boiler feed water?
- What do you understand by number average molecular weight of polymer?
- What are petrochemicals? What are the primary raw materials for petrochemicals?
- Methanol is a good solvent for UV but not for IR studies. Why?
- Explain phosphorescence.
- What are ionic liquids?
- What do you understand by functionality in polymer chemistry?
- Define nanoscience.
- Distinguish between priming and forming.
- Compare dry and wet corrosion.
- Why the water is soften before using in boiler?
- Why rusting of iron in saline water is quicker than ordinary water?
- What is the basic principle of chromatographic techniques?
- What is the difference between specific conductance and equivalent conductance?
- Distinguish between Thermal and Photochemical Reactions.
- Define Syndiotactic Polymers.
- What is Chemical shift in NMR?
- What is Frank-Condon principle?
- Determine the number of components, number of phase and degree of freedom on the following equilibrium :(i) N2O4(g) ⇌ 2NO2(g) (ii) NH4Cl(s) ⇌ NH3(g) + HCl(g) When P(NH3) ⇌ P(HCl)
- Calculate the number of vibrational degrees of freedom in CO2 and SO2.
- Distinguish between photo physical and photochemical process.
- What are Optical Sensors?
- Differentiate between Scale and Sludge.
- What do you mean by Anodic Sacrificial Protection?
- CO2 should not be present in boiler feed water. Why?
- What are atactic polymers?
- Which of the following will exhibit infrared spectra and why? N2, HCl, O2, CO2.
- What are Reinforced Composite Materials?
- What are Coercing Colloids?