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Aragen Life Sciences Research Associate Interview Questions, Process, and Tips
Top Aragen Life Sciences Research Associate Interview Questions and Answers
- Q1. Tell any name reactions to form new c-c bond without metal catalyst?
- Q2. If you have to separate acid from a acid-base mixture in liquid state, how will you do that?
- Q3. What are H1NMR values? Types of reactions? Explain NMR?
Aragen Life Sciences Research Associate Interview Experiences
26 interviews found
Anonymous
I applied via Walk-in and was interviewed in Dec 2021. There were 2 interview rounds.
(2 Questions)
- Q1. Tell any name reactions to form new c-c bond without metal catalyst?
- Q2. If you have to separate acid from a acid-base mixture in liquid state, how will you do that?
- Ans.
To separate acid from an acid-base mixture in liquid state, we can use various methods such as solvent extraction, distillation, or ion exchange.
Solvent extraction involves adding a solvent that selectively dissolves the acid, then separating the two layers.
Distillation involves heating the mixture to vaporize the acid, then condensing it back into a separate container.
Ion exchange involves passing the mixture through ...
(2 Questions)
- Q1. Why you are leaving from your current job?
- Q2. What are your salary expectations?
Interview Preparation Tips
- Organic Chemistry
- Synthesis
- Organic Synthesis
- Purification techniques
For experienced synthesis department candidates mostly questions will be on your lab practice and some questions on conversions in organic synthesis.
I applied via Walk-in and was interviewed in Nov 2021. There were 3 interview rounds.
Questions where take from msc basics
(3 Questions)
- Q1. Any synthesis done in college explain with mechanism
- Ans.
Synthesized 2-methylcyclohexanol from cyclohexene using acid-catalyzed hydration.
Started with cyclohexene and added concentrated sulfuric acid to protonate the double bond.
Water was then added to the reaction mixture, which attacked the carbocation intermediate to form a tertiary alcohol.
The product was then extracted and purified via distillation.
2-methylcyclohexanol was characterized using IR and NMR spectroscopy.
- Q2. Analytical valves, oxidation, reduction
- Q3. Named reactions, molarity, normality
(1 Question)
- Q1. About bond, and salary package
Interview Preparation Tips
- Basic organics synthesis
- Analytical Instruments
I applied via Campus Placement and was interviewed in Jan 2022. There were 2 interview rounds.
Written exam
(3 Questions)
- Q1. About Analytical Skils
- Q2. About HPLC basic question and Basic Organic also GCMS
- Q3. What is Chromatography, What is HPLC what is the role of HPLC
- Ans.
Chromatography is a technique used to separate and analyze mixtures. HPLC is a type of chromatography used for high-resolution separation.
Chromatography involves passing a mixture through a stationary phase, which separates the components based on their properties.
HPLC uses high pressure to force the mixture through a column packed with a stationary phase, allowing for more precise separation.
HPLC is commonly used in p...
Interview Preparation Tips
(1 Question)
- Q1. Name reaction and should be knowledge of NMR and Lcms
Interview Preparation Tips
Aragen Life Sciences interview questions for designations
I applied via Naukri.com and was interviewed before May 2021. There were 2 interview rounds.
(2 Questions)
- Q1. Name reaction and should be knowledge of NMR and Lcms
- Q2. Which oxidation and reduction reagent handled
- Ans.
I have experience handling various oxidation and reduction reagents in my previous research work.
I have worked with common oxidizing agents such as potassium permanganate, hydrogen peroxide, and chromic acid.
I have also handled reducing agents like sodium borohydride, lithium aluminum hydride, and diisobutylaluminum hydride.
I am familiar with the safety precautions and proper handling techniques for these reagents.
I ha...
Interview Preparation Tips
- Communication Skills
- Name reaction
- Organic Chemistry
Get interview-ready with Top Aragen Life Sciences Interview Questions
Selected
I applied via Approached by Company and was interviewed before Mar 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Coupling Reactions, oxidising and reducing agents, NMR predictions, Functional group interconversion, pyrophoric reactions safety.
- Q2. Which pyrophoric reagents you have handled in the current organization? and how you are following the safety for using this chemicals?
Interview Preparation Tips
I applied via LinkedIn and was interviewed in Mar 2021. There were 3 interview rounds.
Interview Questionnaire
4 Questions
- Q1. Some named reactions, proton nmr chemical shift of aldehydic proton in benzaldehyde. How nihydrin solution, 2,4 DNP are used to predict the compound in TLC.
- Q2. Reaaction conditions for several chemical transformations.
- Ans.
Reaction conditions for chemical transformations
Reaction temperature
Reaction time
Catalyst used
Solvent used
Concentration of reactants
pH of reaction mixture
Pressure
Stirring rate
Light exposure
Oxidizing or reducing agents used
- Q3. What are your salary expectations?
- Q4. Nmr peaks of solvents
- Ans.
NMR peaks of solvents are important for identifying and quantifying compounds in solution.
Different solvents have different NMR peaks due to their unique chemical structures
Common solvents used in NMR spectroscopy include CDCl3, DMSO-d6, and acetone-d6
The NMR peaks of solvents can interfere with the peaks of the compound being studied, so it is important to choose a solvent with minimal interference
The chemical shift o...
Interview Preparation Tips
Interview Questionnaire
3 Questions
- Q1. Which instrument you have handle?
- Ans.
I have handled various instruments in my research work.
Microscopes for observing samples at high magnification
Spectrophotometers for measuring the absorbance or emission of light by substances
Centrifuges for separating components of a mixture based on density
PCR machines for amplifying DNA sequences
Electrophoresis equipment for separating DNA, RNA, or proteins based on size and charge
- Q2. What is principle of Hplc?
- Ans.
HPLC stands for High Performance Liquid Chromatography. It is a technique used to separate, identify, and quantify components in a mixture.
HPLC works on the principle of differential partitioning of analytes between a stationary phase and a mobile phase.
The stationary phase is a solid or liquid material packed into a column, while the mobile phase is a liquid solvent that carries the sample through the column.
Analytes ...
- Q3. What are the chloro and bromo pattern ratio?
- Ans.
Chloro and bromo pattern ratio refers to the ratio of the number of chloro and bromo substituents on a molecule.
The chloro and bromo pattern ratio is calculated by dividing the number of chloro substituents by the number of bromo substituents.
For example, if a molecule has 2 chloro substituents and 1 bromo substituent, the chloro and bromo pattern ratio would be 2:1.
The chloro and bromo pattern ratio can be used to det...
Selected
I applied via Campus Placement and was interviewed before Mar 2022. There were 3 interview rounds.
(1 Question)
- Q1. Based on resume and projects done before
(1 Question)
- Q1. General HR questions
Interview Preparation Tips
Interview Questionnaire
3 Questions
- Q1. About sfc purification
- Q2. Nmr spectroscopy
- Q3. Ir spectroscopy
Top trending discussions
Aragen Life Sciences Interview FAQs
Some of the top questions asked at the Aragen Life Sciences Research Associate interview -
The duration of Aragen Life Sciences Research Associate interview process can vary, but typically it takes about less than 2 weeks to complete.
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Aragen Life Sciences Research Associate Interview Process
based on 18 interviews
4 Interview rounds
- Resume Shortlist Round
- Technical Round
- HR Round - 1
- HR Round - 2
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