Petroleum Engineering Question:

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Petrolatum is

A. same as petroleum ether.
B. petroleum coke.
C. a mixture of microcrystalline wax in viscous hydrocarbon liquids.
D. none of these.

Petroleum Engineering Interview Question
Petroleum Engineering Interview Question

Answer:

Option C

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Mercaptans is represented as (where R and R' are alkyl groups)

A. R-COOH
B. R-S-H
C. R-S-R
D. R-S-R'		Electrical desalting of crude oil removes the __________ impurities.

A. oleophilic
B. oleophobic
C. both (a) and (b)
D. neither (a) nor (b)