TCG Lifesciences Research Associate Interview Questions and Answers

Polarity refers to the separation of electric charge within a molecule, which affects its chemical properties.

• Polarity is determined by the difference in electronegativity between atoms in a molecule.

• Polar molecules have a positive and negative end, while nonpolar molecules have an even distribution of charge.

• Polarity influences various properties of molecules, such as solubility, boiling point, and intermolecular forc...read more

Chromatography is a technique used to separate and analyze mixtures of substances based on their different interactions with a stationary phase and a mobile phase.

• Gas chromatography (GC) separates volatile compounds based on their vapor pressure and affinity for the stationary phase.

• Liquid chromatography (LC) separates compounds based on their polarity and affinity for the stationary phase.

• Ion exchange chromatography s...read more

Chiral compounds are molecules that have a non-superimposable mirror image.

• Chiral compounds have an asymmetric carbon atom, also known as a chiral center.

• They exist in two enantiomeric forms, which are mirror images of each other.

• Chiral compounds exhibit optical activity, meaning they rotate the plane of polarized light.

• They have different physical and chemical properties from their mirror images.

• Examples of chiral com...read more