Trainee Research Associate Interview Questions and Answers for Freshers

Enzymes are biological catalysts that speed up chemical reactions in living organisms.

• Enzymes are made up of proteins and are highly specific in their function.

• They lower the activation energy required for a chemical reaction to occur.

• Enzymes are classified based on the type of reaction they catalyze, such as hydrolases, oxidoreductases, and transferases.

• Examples of enzymes include amylase, which breaks down starch, and lactase, which breaks down lactose.

Discipline is the practice of training people to obey rules or a code of behavior.

• Discipline helps in achieving goals and success.

• It helps in maintaining order and structure in personal and professional life.

• It teaches self-control and responsibility.

• Examples of discipline include following a daily routine, meeting deadlines, and adhering to workplace policies.

• Discipline is important in all aspects of life, including education, sports, and the military.

Pinacol pinacolone rearrangement is a reaction in which a pinacol rearranges to form a ketone.

• Involves the rearrangement of a 1,2-diol to a ketone

• Requires an acidic catalyst such as sulfuric acid

• Named after the starting material (pinacol) and the product (pinacolone)

• Used in organic synthesis to form complex molecules

Fermentation is a metabolic process that converts sugar to acids, gases, or alcohol.

• Fermentation is an anaerobic process

• It is used in the production of alcoholic beverages like beer and wine

• It is also used in the production of bread, yogurt, and cheese

• Fermentation can be carried out by microorganisms like yeast and bacteria

• It is an important process in the field of biotechnology

The density difference between ethyl acetate, water, and DCM varies due to their different molecular weights and intermolecular forces.

• Ethyl acetate has a lower density than water and DCM due to its lower molecular weight.

• DCM has a higher density than water and ethyl acetate due to its higher molecular weight.

• The intermolecular forces between the molecules also affect the density difference.

• For example, hydrogen bonding between water molecules increases its density compared t...read more

Molarity is the concentration of a solution expressed as the number of moles of solute per liter of solution. Normality is the concentration of a solution expressed as the number of equivalents of solute per liter of solution.

• Molarity is a measure of the number of moles of solute per liter of solution.

• It is represented by the symbol 'M'.

• For example, a 1 M solution of sodium chloride contains one mole of sodium chloride per liter of solution.

• Normality is a measure of the numbe...read more