West Bengal Chemical Industries Trainee Chemist Interview Questions and Answers

Distillation is a process of separating components of a liquid mixture based on differences in boiling points.

• Distillation involves heating a liquid mixture to create vapor, then cooling the vapor to condense it back into liquid form.

• The components with lower boiling points will vaporize first and be collected, while the components with higher boiling points remain in liquid form.

• Common examples of distillation include...read more

Crystallization is the process of forming solid crystals from a solution, melt, or gas.

• Crystals are formed when atoms, ions, or molecules arrange themselves in a highly ordered, repeating pattern.

• It involves the separation of a solid substance from a liquid solution.

• Common examples include the formation of salt crystals from seawater and sugar crystals from a sugar solution.

Chromatographic separation method is a technique used to separate and analyze mixtures of chemicals based on their different properties.

• Chromatography involves a stationary phase and a mobile phase

• Different compounds in the mixture interact differently with the stationary phase, leading to separation

• Examples include gas chromatography, liquid chromatography, and thin-layer chromatography