23 JULY 2021 CURRENT AFFAIRS QUIZ

None of these

both (a) and (b)

is changed continuously or in a series of steps

remains constant

Greater sensitivity and reusable columns

All of these

Ideal for ionic species and large molecules

Sample recovery

10 and 50 A°

60 and 100 A°

150 and 200 A°

100 and 150 A°

inversely related to the square of the peak width

inversely related to the cube root of the peak width

directly related to the square of the peak width

directly related to the square of the peak width

changes in a series of steps

remains constant

none of these

changes continuously

Any of the above

Any compound with solubility in liquid

Any compound with non-solubility in liquid

Any compound with limited solubility in liquid

solvent adsorption energy

solvent absorption energy

solvent diffusivity

solvent mixing index

is a measure of the solvent adsorption energy

ranks solvents by their relative abilities to displace solutes from a given absorbent

None of these

ranks column packing material by their relative abilities to retain solutes on the column

non polar solvent/non-polar column

any of the above

non polar solvent/polar column

polar solvent/non-polar column

non polar solvent/polar column

any of the above

polar solvent/non-polar column

non polar solvent/non-polar column