Chemical process technology quiz 2018

CHEMICAL PROCESS TECHNOLOGY QUIZ

Q. 1. The molecular formula of the pre-dominant chemical compound in commercial sugar is

C₁₂H₂₂O₁₁
C₁₂H₂₄O₁₂
C₆H₁₀O₅
C₆H₁₂O₆

Q. 2. In connection with petroleum refining, identify the incorrect statement among the following options.

Desalting of crude oil is before processing it in atmospheric distillation unit
A stream of hydrogen is produced in catalytic reforming of naphtha
Asphalt used for paving IS a petroleum product
Cetane number indicates the quality of petrol/ motor spirit

Q. 3 For absorption of H₂S from a mixture with hydrocarbon vapour into an acqueous alkanolamine solution, the liquid phase mass transfer resistance is

significantly higher than that of the gas phase
negligible compared to that of the gas phase
equal to that of the gas phase
dependent on the gas phase mass transfer resistance

Q. 4 Polyvinyl chloride is produced by

co-polymerization
addition-type kinetics
reacting chlorine with polyethylene
reacting hydrochloric acid with polyethylene

Q. 5 Choose the correct statement
In viscose rayon manufacturing process,

carbon disulphide used as reactant for xanthate formation is regenerated in a later step
caustic soda used as reactant for steeping of cellulose is regenerated in a later step
sulphuric acid is used in steeping process of cellulose
the spun viscose rayon is hardened in an alkali bath