Unichem Laboratories Senior Research Associate Interview Questions and Answers

Q1. Who are you, why you want this job
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Q2. What do you expect from us
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Q1. How are you, Are you feeling ok
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Q2. How much salary you expect why should we offer you that
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Basic Knowledge in Chemistry and your experience skills

Q1. Working experience and strong chemistry knowledge
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Q1. Salary Discussion and working environment
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Q1. Principles of hplc, gc, ir
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Principles of HPLC, GC, and IR involve separation of compounds based on different physical and chemical properties.
• HPLC (High Performance Liquid Chromatography) separates compounds based on their affinity for the stationary phase and mobile phase.

• GC (Gas Chromatography) separates compounds based on their boiling points and affinity for the stationary phase.

• IR (Infrared Spectroscopy) identifies compounds based on their ...read more
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Q2. Difference between roi and lod
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ROI stands for Return on Investment, while LOD stands for Limit of Detection.
• ROI is a financial metric used to evaluate the efficiency or profitability of an investment.

• LOD is the lowest concentration of a substance that can be reliably detected by a particular analytical procedure.

• ROI is typically expressed as a percentage, representing the ratio of net profit to the initial investment.

• LOD is important in analytical c...read more
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Q1. Expected salary
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Q1. Job responsibilities
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Q2. Instruments handled
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Q1. Current experience,CTC
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Q1. What is polarity and how it effect the molecules
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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
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Q2. Types of chromatography
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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
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Q3. Chiral compound and its characteristics
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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
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Q1. Pharma related questions
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Q1. About instument
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Q2. About instrument knowledge
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Q3. Kf gc hplc validation
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Q1. Salary discussion
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Q2. Good hr department
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Q1. Current job responsibilities?
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Q2. Challengeing questions
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