Question: 7 . _ _ _ _ _ _ _ _ is a byproduct of petroleum refining and is used as a lubricant and in the

7.________ is a byproduct of petroleum refining and is used as a lubricant and in the production of candles. This substance is derived from the ________ fraction of crude oil.
(Options: petroleum wax, asphalt, bitumen; naphtha, paraffin, kerosene)

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