A. Diesel increases its cetane number
B. Kerosene increases its smoke point
C. Petrol increases its octane number
D. All A., B. and C.
A. Time after which smoking starts on burning
B. Temperature at which smoking starts
C. Maximum height of flame (in mm) without causing smoking, when burnt in a standard lamp
D. None of these
A. Methyl alcohol
B. Ethyl alcohol
C. Methane
D. Ethane
A. Fluid catalytic cracking
B. Visbreaking
C. Propane deasphalting
D. None of these
A. PCM
B. Tar
C. Light diesel oil
D. Low viscosity furnace oil
A. Lower Reid vapour pressure
B. Higher acid number
C. Higher flash point and fire point
D. Lower flash point and fire point
A. Alkylation of unsaturated
B. Presence of sulphur
C. Oxidation & polymerisation of unsaturated
D. Higher aromatic content