

MCQOPTIONS
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1. |
THE_MIXTURE_OF_PETROLEUM_ETHER_AND_BENZENE_IS_USED_IN_THE_ELUTION_RATIO_OF?$ |
A. | 1 : 2 |
B. | 1 : 5 |
C. | 1 : 9 |
D. | 1 : 12 |
Answer» D. 1 : 12 | |