1.

During the processing of coal to obtain ____i____, _____ii_____ is formed as a by-product. The information in which alternative completes the given statement?

A.  i-Coal gas, ii-Coke           
B.  i-Coke, ii-Coal tar
C.  i-Coal tar, ii-Coal gas      
D.  i-Coke, ii-Coal gas
Answer» E.


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