HPLC
The eluent strength is a measure of

solvent diffusivity
solvent mixing index
solvent absorption energy
solvent adsorption energy

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HPLC
Dwell volume is defined as

none of these
the volume of the column between the point at which solvents are mixed and the beginning of the column
the time required for the gradient to reach the column
the volume of solvent contained in a liquid chromatographic column

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HPLC
Column efficiency is measured in terms of number of plates which is

inversely related to the cube root of the peak width
inversely related to the square of the peak width
directly related to the square of the peak width
directly related to the square of the peak width

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HPLC
HPLC stands for

High Pressure Liquid Chromatography
Highly Placed Liquid Chromatography
High Performance Liquid Chromatography
both (a) and (b)

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