Which of the following hydrocarbons present in gasoline are prone to gum formation?
A.Paraffins
B.Naphthenes
C.Olefins
D.Isoparaffins
A.Paraffins
B.Naphthenes
C.Olefins
D.Isoparaffins
A.Gasoline
B.Furnace oil
C.Light diesel oil
D.High speed diesel oil
A.NaPbO2
B.Na2PbO
C.Na2PbO2
D.Na4PbO
Continue reading “Sodium plumbite has the chemical formula____________?”
A.remains unaffected with change in density
B.decreases with increase in density
C.increases with increase in density
D.none of the above
A.lamp method
B.quartz tube method
C.bomb method
D.none of the above
A.normal paraffins
B.isoparaffins
C.naphthenes
D.aromatics
A.slightly exothermic
B.endothermic
C.autocatalytic
D.highly exothermic
A.Ethyl mercaptan
B.thiophene
C.tetrahydrothiophene dioxide
D.methyl mercaptan
A.Paraffins
B.Isoparaffins
C.Naphthenes
D.Armatics
A.to minimize gum formation
B.to prevent icing of the carburettor
C.to prevent the build-up of lead in engines
D.for identification