Molarity is ...

• grams of solute/deciliters of solvent.

• grams of solute/liters of solution.

• moles of solute/liters of solution.

• moles of solute/milliliters of solvent.

A solution is made by dissolving 0.50 mole of NaCl in enough water to give a final volume of 400.0 mL. What is the molarity of the solution?

• 0.10 M

• 0.40 M

• 1.25 M

• 2.33 M

Types according to the packing of the stationary phase Chromatography...

• Thin layer chromatography (TLC)

• Thick layer chromatography (TLC)

• Primary Chromatography (PC)

• Private Chromatography (PC)

Types according to the force of separation of Chromatography...

• Adsorption chromatography

• Partition chromatography.

• Column chromatography

• Thin layer chromatography

Mechanism of solute ions of charge opposite to the fixed ions are attracted to the resin by electrostatic forces & replace the mobile counterions...

• Adsorption Chromatography

• Partition Chromatography

• Ion Exchange Chromatography

• Affinity Chromatography

Mechanism of special kind of solute  molecules interact  with those immobilized on the stationary phase...

• Adsorption Chromatography

• Partition Chromatography

• Ion Exchange Chromatography

• Affinity Chromatography

Technique used for separation of volatile substances from one another in a gaseous mixture at high temperatures without any decomposition is the meaning of...

• Gas Chromatography

• Liquid Chromatography

• Column Chromatography

• Paper Chromatography

Gas requirements in Gas Chromatography...

• Highly pure (> 99.9%)

• A higher density (larger viscosity) carrier gas

• A lower density (smaller viscosity) carrier gas

• Cheap and available carrier gas is an advantage

An Ideal detector component of GC should have...

• Good stability and reproducibility

• A wide temperature range

• A long response time independent of flow rate

• The detector should be nondestructive

Characteristic features of Low-Performance Liquid Chromatography...

• Poor eficiency in the system

• Large plate height

• Column can only tolerate low operating pressure

• Good System efficiency