HPLC
In reversed phase HPLC, there is a

polar solvent/non-polar column
any of the above
non polar solvent/non-polar column
non polar solvent/polar column

ANSWER DOWNLOAD EXAMIANS APP

HPLC
An eluotropic series

is a measure of the solvent adsorption energy
None of these
ranks solvents by their relative abilities to displace solutes from a given absorbent
ranks column packing material by their relative abilities to retain solutes on the column

ANSWER DOWNLOAD EXAMIANS APP