The liquid used for the washing of coal in an industrial coal washery – McqOptions

MCQOPTIONS

1.	The liquid used for the washing of coal in an industrial coal washery is a mixture of water and
A.	carbon tetrachloride.
B.	sand (40%).
C.	mineral oil of high viscosity & specific gravity (1.6)
D.	none of these.
Answer» C. mineral oil of high viscosity & specific gravity (1.6)

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