Related Questions

In petroleum refining, the process used for conversion of hydrocarbons to aromatics is
A Catalytic cracking
B Catalytic reforming
C Hydrotreating
D Alkylation
Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency?
A Paraffins
B Naphthenes
C Aromatics
D Iso-paraffins
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-ingnition temperature
D All of the above
Aromatics are desired constituents of
A Lubricating oil
B Diesel
C Kerosene
D Petrol
Furfural solvent extraction is used for upgrading (by dissolving aromatics)
A Naphtha
B Lubricating oils
C Wax
D Cracking feedstock
Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is
A Propane
B Diethylene glycol
C Aqueous solution (10% water) of diethylene glycol
D Methyl ethyl ketone (MEK)
Presence of aromatics in
A Diesel increases its cetane number
B Kerosene increases its smoke point
C Petrol increases its octane number
D All of the above
12 গ্রাম বিশুদ্ধ কার্বন -12 এ কার্বন পরমাণুর সংখ্যা হলো- (The number of carbon atoms in 12 g of pure carbon -12 is)
A 6.022 × 1023
B 7.226 × 1024
C 5.018 × 1022
D 3.011 × 1023
When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as
A Isomers
B Isotopes
C Isobars
D Isotones
Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is
A Alumina
B Platinum
C Vanadium pentoxide
D Iron oxide

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