Lasons India Interview Questions and Answers

Q1. Distillation types Why we choose this type
Ans. 
Distillation types are chosen based on the properties of the substances being separated and the desired outcome.
• Different distillation types include simple distillation, fractional distillation, and steam distillation.

• Simple distillation is used for separating substances with significantly different boiling points.

• Fractional distillation is used when the boiling points of the substances are closer together.

• Steam distil...read more
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Q2. Mechanism preparation
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Self introduction & basic knowledge

Q1. Explain Hplc, Gc?
Ans. 
HPLC and GC are analytical techniques used in chemistry to separate, identify, and quantify components in a mixture.
• HPLC stands for High Performance Liquid Chromatography, used for separating compounds in a liquid mixture based on their interactions with a stationary phase and a mobile phase.

• GC stands for Gas Chromatography, used for separating compounds in a gas mixture based on their partitioning between a stationary...read more
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Q2. What is oxidation reaction, distillation its types?
Ans. 
Oxidation reaction involves the loss of electrons, while distillation is a process of separating components based on their boiling points.
• Oxidation reaction is a chemical reaction in which a substance loses electrons.

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

• Types of distillation include simple distillation, fractional distillation, and steam distillation.
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Q1. What is your Current CTC?
Ans. 
My current CTC is competitive and reflects my skills and experience in R&D chemistry, aligning with industry standards.
• My current CTC is INR 8,00,000 per annum, which includes base salary and bonuses.

• I have consistently received performance-based increments, showcasing my contributions.

• In my previous role, I negotiated a CTC increase after successfully leading a project that improved product yield by 15%.

• I am open ...read more
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Q2. How many expected CTC?
Ans. 
Expected CTC depends on the company, location, experience, and negotiation skills.
• Expected CTC can vary based on the company's budget and policies.

• Location plays a significant role in determining the expected CTC.

• Experience level of the candidate also influences the expected CTC.

• Negotiation skills can impact the final CTC offered by the company.
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Q1. What are the types of Titrations
Ans. 
There are several types of titrations, including acid-base, redox, complexometric, precipitation, and non-aqueous titrations.
• Acid-base titrations involve the use of an acid or base to neutralize a sample.

• Redox titrations involve the transfer of electrons between reactants.

• Complexometric titrations involve the formation of a complex between a metal ion and a ligand.

• Precipitation titrations involve the formation of a pre...read more
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Q2. What are the different techniques of Chromatography
Ans. 
Chromatography techniques separate and analyze mixtures based on their physical and chemical properties.
• Gas chromatography (GC)

• Liquid chromatography (LC)

• Ion exchange chromatography (IEC)

• Size exclusion chromatography (SEC)

• Affinity chromatography (AC)

• Thin layer chromatography (TLC)
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Q1. Describe about your self in brief What is distillation column What is priming
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