A. CnH2n + 2
B. CnH2n-6 (where, n ≥ 6)
C. CnHn-4
D. Same as that for olefins i.e. CnH2n
Related Mcqs:
- CnH2n is the general formula for_______________?
A. Olefins
B. Naphthenes
C. Both A. and B.
D. Neither A. nor B. - Cracking is___________________?
A. An exothermic reaction
B. An endothermic reaction
C. Favoured at very low temperature
D. None of these - Octane number of gasoline produced by two stage fluidised catalytic cracking process is___________________?
A. 80
B. 87
C. 92
D. 97 - Main constituent of natural gas is___________________?
A. CH4
B. C2H2
C. C2H4
D. C2H6 - Naphthenic acid is a/an ______________ compound?
A. Sulphur
B. Nitrogen
C. Oxygen
D. None of these - Clay treatment of petroleum products __________________?
A. Decolorizes & stabilises cracked gasoline
B. Desulphurise straight run gasoline & kerosene
C. Adsorb arsenic from feedstock to catalytic reforming
D. All A., B. & C. - Aniline point is the temperature at which___________________?
A. Equal weight of diesel & the aniline are completely miscible
B. Equal weight of aniline & the test sample are completely miscible
C. Equal volume of aniline & the test sample are completely miscible
D. Aniline vaporises - Which of the following is the most widely used cracking process in oil refineries ?
A. Dubbs process
B. T.C.C. moving bed process
C. Fluidised bed catalytic cracking process
D. Houdry’s fixed bed process - Pick out the wrong statement ?
A. Pensky-Marten apparatus is used for determining flash points above 50°C
B. Characterisation factor of paraffinic crude oil is more than 12
C. Abel apparatus is used for determining flash points below 50°C
D. An oil having high susceptibility to change in viscosity with temperature changes, has a high viscosity index - Fuel oil is subjected to visbreaking to reduce its_______________?
A. Pour point
B. Viscosity
C. Pressure drop on pumping
D. All A., B. and C.
