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

inversely related to the square of the peak width
directly 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

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HPLC
HPLC stands for

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

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HPLC
HPLC methods include

liquid/solid (adsorption) chromatography
All of these
liquid/liquid (partition) chromatography
ion exchange and size exclusion chromatography

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