Most widely used solvent for dewaxing is__________________?

A. Octane number
B. Lead susceptibility
C. Gum forming tendency & thoroughness of refining
D. None of these

A. H2SO4
B. H3PO4
C. Both A. and B.
D. AlCl3

A. 60
B. 70
C. 80
D. 90

A. 80
B. 87
C. 92
D. 97

A. Same as petroleum ether
B. Petroleum coke
C. A mixture of microcrystalline wax in viscous hydrocarbon liquids
D. None of these

A. Residual crude
B. Residuum
C. Reduced crude
D. Petrolatum