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it consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of c4through c6.]
it consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of c4 through c6.]
it consists predominantly of unsaturated hydrocarbons boiling in the range above approximately 180 oc (356of).]
it consists predominantly of unsaturated hydrocarbons boiling in the range above approximately 180 oc (356 of).]