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141.

Edeleanu process is used to extract aromatics from kerosine using liquid sulphur dioxide as solvent. In this process extractor temperature is maintained at about

A.	80?C	B.	180?C
C.	?20?C	D.	470?C

142.

Paraffin waxes are graded by its

A.	melting point	B.	specific gravity
C.	ductility	D.	viscosity