⟩ The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mmHg. A. 1.2 B. 12 C. 120 D. 700
Option C
Option C
Pick out the wrong statement. A. A pale color of petroleum product indicates lower viscosity. B. Color of petroleum products indicates the degree of refinement. C. Lighter petroleum distillates are lighter in color than the heavier residual oils. D. Flouroscene of oils helps to detect its adulteration.
Sweetening of petroleum product means the removal of A. sulphur & its compounds B. water C. organic impurities D. wax
Reforming A. uses naphtha as feedstock. B. does not much affect the molecular weight of the feed. C. improves the quality & yield of gasoline. D. all (a), (b) and (c).
Pyrolysis of kerosene or natural gasoline is done to produce mainly the A. olefins and aromatics B. lighter paraffins C. stabilised gasoline D. diesel
Which of the following has maximum hydrogen/carbon ratio (by weight)? A. Naphtha B. Gasoline C. Diesel D. Fuel oil
Which of the following fractions of petroleum contains maximum sulphur? A. Diesel B. Gasoline C. Naphtha D. Atmospheric residue
Reforming converts A. olefins into paraffins B. naphthenes into aromatics C. naphthenes into olefins. D. naphthenes into paraffin.
Pick out the wrong statement. A. Alkylation produces a larger iso-paraf-fin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin. B. Catalytic alkylation processes use HF, AlCl3 & H2SO4 as Catalysts. C. All the alkylation processes use very high temperature (> 1000°C). D. Gasoline having an octane number of 90 can be produced by alkylation process.
Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas. A. unsaturated hydrocarbon content B. calorific value C. quantity of propane D. quantity of butane
H/C ratio (by weight) for the same number of carbon atoms is the highest in case of A. aromatics B. paraffins C. olefins D. naphthenes