A. Propane
B. Diethylene glycol
C. Aqueous solution (10% water) of diethylene glycol
D. Methyl ethyl ketone (MEK)
Related Mcqs:
- ‘Solvent naphtha’ used mostly as a solvent in paints and perfumery is produced by the _________________ of virgin naphtha into small boiling range cuts?
A. Steam reforming
B. Distillation
C. Desulphurisation
D. None of these - Furfural solvent extraction is used for upgrading (by dissolving aromatics) ?
A. Naphtha
B. Lubricating oils
C. Wax
D. Cracking feedstock - Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl isobutyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the____________________?
A. Elimination of solvent drying facility
B. Higher nitration temperature
C. Lower solvent dilution ratio
D. All A., B. & C. - In petroleum refining, the process used for conversion of hydrocarbons to aromatics is________________?
A. Catalytic cracking
B. Catalytic reforming
C. Hydrotreating
D. Alkylation - Solvent used in duo-sol extraction for lube oil upgradation is a mixture of______________?
A. Propane & phenol-cresol mixture
B. Methyl ethyl ketone & glycol
C. Phenol & furfural
D. Propane & liquid sulphur dioxide - Glycol added to petrol acts as a/an ________________ agent ?
A. Anti-knocking
B. Anti-icing
C. Anti-gum forming
D. Dewaxing - Aromatics have the highest ________________ of all the hydrocarbons of same carbon atoms?
A. Smoke point
B. Octane number
C. Cetane number
D. Viscosity - Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has__________________?
A. High pour point and low smoke point
B. Low viscosity index
C. High self-ignition temperature
D. All A., B. and C. - Presence of aromatics in __________________?
A. Diesel increases its cetane number
B. Kerosene increases its smoke point
C. Petrol increases its octane number
D. All A., B. and C. - Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene ?
A. Reforming
B. Pyrolysis
C. Alkylation
D. Hydrocracking
