Interview Questions for MSc / BSc Chemistry Freshers

This article will give you an idea of how an interviewer can ask questions if an MSc or BSc fresher attends a job interview

The first question you will be asked in any interview is tell me about yourself

The interviewer intentionally asks this question, as he doesn’t have enough time to go through your resume, so start telling about yourself by greeting the interviewer, try to cover all the things mentioned in the resume.

What is molality  

Molality is the number of moles of solute per one kilogram of solvent. It is the measure of concentration of solute in solution. And molality depends on the mass of the solvent and independent of temperature and pressure

What is titration technique 

Titration is a method to determine the concentration of unknown solution, which may be acid or base. In this method the titrant is added continuously into known volume of solution of unknown concentration until end point is reached which can be determined with help of color change using an indicator. Here the titrant is the known concentration of solution. If we measure the titrant consumed, we can determine the concentration of unknown solution.

What is a Buffer?

A buffer is a solution that resists changes in pH when small amounts of an acid or base are added. It is made up of weak acid and its conjugate base or vice versa. Buffers maintain a stable pH by neutralizing added hydrogen ions (H⁺) or hydroxide ions (OH⁻), making them essential in many chemical and biological systems where pH stability is crucial.

What is a mole 

A mole is unit of measurement in chemistry. It represents number of particles like atoms or molecules.one mole is equal to 6.022×10 23 particles.

What is valency?

Valency is the combining capacity of an atom. It is the number of electrons an atom can lose, share or gain to form chemical bonds.

Which metal is used to extract copper from copper sulfate solution?

In this case Fe (iron) is the metal used, when iron is added to copper sulfate solution, a displacement reaction take place, where iron displaces the copper from the solution, resulting in the formation of iron sulfate and deposition of copper.

Why is Sodium lamp used in polarimeter?

The reason why sodium lamp is used in polarimeter is it emits monochromatic light at wavelength of 589 nm (the sodium D-line). Measurement of optical rotation is precise with monochromatic light.

The Name Benzene was proposed by?

The name ”benzene ” was proposed by the German chemist August Kekule in 1865 and he also famous for proposing the ring structure of  benzene. His was work on the naming and structure of benzene was foundational in organic chemistry.