Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because it is inert all of above it doubles up as a party gas for balloons and funny voices it has a lower viscosity it is inert all of above it doubles up as a party gas for balloons and funny voices it has a lower viscosity ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography In column switching chromatography compounds trapped on one column are eluted to another column one column is removed and replaced by another any of the above the flow to the column is switched on and off repeatedly compounds trapped on one column are eluted to another column one column is removed and replaced by another any of the above the flow to the column is switched on and off repeatedly ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Doubling the column's length increases resolution by a factor of (2)0.5 3 4 2 (2)0.5 3 4 2 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the statements is correct? Gas chromatography is used to analyse gases, solutions and solids All of these Gas chromatography is used to analyse gases Gas chromatography is used to analyse solids Gas chromatography is used to analyse gases, solutions and solids All of these Gas chromatography is used to analyse gases Gas chromatography is used to analyse solids ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Resolution is proportional to the square root of the number of theoretical plates in a column number of theoretical plates in a column square of the number of theoretical plates in a column cube root of the number of theoretical plates in a column square root of the number of theoretical plates in a column number of theoretical plates in a column square of the number of theoretical plates in a column cube root of the number of theoretical plates in a column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the selectivity factor describe? The relative separation achieved between two species The maximum number of different species which a column can separate simultaneously The proportional difference in widths of two chromatographic peaks None of these The relative separation achieved between two species The maximum number of different species which a column can separate simultaneously The proportional difference in widths of two chromatographic peaks None of these ANSWER DOWNLOAD EXAMIANS APP
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