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O2H Group Research Associate Interview Questions, Process, and Tips

Updated 10 Aug 2021

O2H Group Research Associate Interview Experiences

1 interview found

Interview Questionnaire 

8 Questions

  • Q1. 1.How to convert ester to aldehyde?
  • Ans. 

    Esters can be converted to aldehydes by hydrolysis under acidic conditions.

    • Esters can be hydrolyzed to aldehydes using a strong acid, such as sulfuric acid or hydrochloric acid.

    • The reaction involves the cleavage of the ester bond and the formation of a carboxylic acid intermediate, which is then further reduced to an aldehyde.

    • The reaction can be carried out at elevated temperatures or using a catalyst, such as p-toluen...

  • Answered by AI
  • Q2. Bromintion on aniline and toluene what will be desired product?
  • Ans. 

    The desired product of bromination on aniline is 2,4,6-tribromoaniline. The desired product of bromination on toluene is bromotoluene.

    • Bromination on aniline results in the substitution of three bromine atoms on the aromatic ring, yielding 2,4,6-tribromoaniline.

    • Bromination on toluene results in the substitution of one bromine atom on the aromatic ring, yielding bromotoluene.

  • Answered by AI
  • Q3. Griganard reaction on aldehyde what will be a product,
  • Ans. 

    The Grignard reaction on an aldehyde will produce a secondary alcohol.

    • The Grignard reaction involves the addition of a Grignard reagent (organomagnesium compound) to an aldehyde or ketone.

    • The reaction proceeds through the formation of a carbon-carbon bond.

    • In the case of an aldehyde, the product will be a secondary alcohol.

    • For example, the reaction of formaldehyde (HCHO) with a Grignard reagent such as methylmagnesium b...

  • Answered by AI
  • Q4. What is Diasteromer and enansiomer
  • Ans. 

    Diastereomers and enantiomers are types of stereoisomers that differ in their spatial arrangement.

    • Diastereomers are stereoisomers that have different configurations at one or more chiral centers but are not mirror images of each other.

    • Enantiomers are stereoisomers that are non-superimposable mirror images of each other.

    • Diastereomers have different physical and chemical properties, while enantiomers have identical physi...

  • Answered by AI
  • Q5. How will be synthesised biaryl product?
  • Ans. 

    The biaryl product can be synthesized through a variety of methods.

    • One common method is the Suzuki-Miyaura cross-coupling reaction.

    • Another method is the Buchwald-Hartwig amination reaction.

    • Transition metal-catalyzed C-H activation can also be used.

    • Examples of biaryl products include biphenyl and terphenyl.

  • Answered by AI
  • Q6. What is the mathod for prepration of amide?
  • Ans. 

    The method for preparation of amide involves the reaction between a carboxylic acid and an amine.

    • Amides can be prepared by the reaction of a carboxylic acid with an amine in the presence of a dehydrating agent.

    • The reaction typically requires heating and can be catalyzed by an acid or base.

    • The resulting product is an amide, which contains a carbonyl group bonded to a nitrogen atom.

    • Example: The preparation of acetamide c...

  • Answered by AI
  • Q7. Proton Nmr peak of methyl aldehyde
  • Ans. 

    The proton NMR peak of methyl aldehyde appears as a singlet at around 9-10 ppm.

    • The proton NMR spectrum of methyl aldehyde shows a singlet peak.

    • The chemical shift of the peak is typically around 9-10 ppm.

    • The singlet peak indicates that the methyl aldehyde molecule has no neighboring protons.

  • Answered by AI
  • Q8. Mass spectra of bromo chloro containing compuond
  • Ans. 

    Mass spectra of bromo chloro containing compound

    • Bromo chloro compounds can have multiple isomers with different mass spectra

    • The presence of bromine and chlorine atoms can cause fragmentation in the mass spectrum

    • The mass spectrum can be used to determine the molecular weight and structural information of the compound

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - These are good question from basic chemistry. 90% student resently passed out msc in chemistry they can ans. But pharma company want to practical work. They cant picup the condidats who has good theoritical but practical hand is zero. How to handle column negative temp. Reaction all etc. More important is practical knowledge as well searching of data paper and purification techinq.

Interview questions from similar companies

I applied via Approached by Company and was interviewed before Jun 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - HR 

(1 Question)

  • Q1. How many years you stay in this organisation?
  • Ans. This organisation is really good, if I thought I will continues upto retirement.
  • Answered Anonymously

Interview Preparation Tips

Interview preparation tips for other job seekers - Great organization and having better system

I applied via Campus Placement and was interviewed before Feb 2020. There were 5 interview rounds.

Interview Questionnaire 

8 Questions

  • Q1. Tell me about yourself
  • Q2. Interest in job role
  • Q3. Previous work experience if any
  • Q4. Hobbies,interests, project details
  • Q5. Family background
  • Q6. Why should we hire you
  • Q7. How much salary you are expecting
  • Q8. Any questions you can ask

Interview Preparation Tips

Interview preparation tips for other job seekers - Be stick on to your CV and some basic subject details, company details and job details

Interview Questionnaire 

3 Questions

  • Q1. 50 ppm solution?
  • Ans. 

    A 50 ppm solution contains 50 parts of solute per million parts of solution.

    • ppm stands for parts per million.

    • It is a measure of concentration.

    • In a 50 ppm solution, there are 50 parts of solute per million parts of solution.

    • For example, if we have a 1 million mL solution, there would be 50 mL of solute in it.

  • Answered by AI
  • Q2. Method validation
  • Q3. Method Development

I applied via Campus Placement and was interviewed before Oct 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Introduction
  • Q2. Technical questions
  • Q3. Vision

Interview Preparation Tips

Interview preparation tips for other job seekers - Be honest and have confidence

I applied via Walk-in and was interviewed before Jan 2020. There was 1 interview round.

Interview Questionnaire 

19 Questions

  • Q1. Picometer
  • Q2. Types of mass spectrometry
  • Ans. 

    Mass spectrometry is a technique used to identify and quantify molecules based on their mass-to-charge ratio.

    • Electrospray ionization (ESI)

    • Matrix-assisted laser desorption/ionization (MALDI)

    • Gas chromatography-mass spectrometry (GC-MS)

    • Liquid chromatography-mass spectrometry (LC-MS)

    • Time-of-flight mass spectrometry (TOF-MS)

  • Answered by AI
  • Q3. Principle of uv spectrometry
  • Ans. 

    UV spectrometry is a technique that measures the absorption or transmission of ultraviolet light by a sample.

    • UV spectrometry is based on the principle that different molecules absorb UV light at specific wavelengths.

    • It is commonly used in analytical chemistry to determine the concentration of a substance in a sample.

    • UV spectrometry can be used to analyze the purity of a compound or identify unknown substances.

    • The instr...

  • Answered by AI
  • Q4. How to prepare0.1 N HCl and NAOH
  • Ans. 

    To prepare 0.1 N HCl and NaOH, you need to calculate the required amount of the respective chemicals and dilute them in water.

    • Calculate the molar mass of HCl and NaOH

    • Determine the volume of solution needed

    • Use the formula: Normality (N) = (Number of equivalents / Volume of solution in liters)

    • For 0.1 N HCl, calculate the number of equivalents of HCl and dilute it to the desired volume

    • For NaOH, calculate the number of equ...

  • Answered by AI
  • Q5. Tell me about yourself
  • Q6. Quality assurance definition
  • Ans. 

    Quality assurance is the process of ensuring that products or services meet the desired level of quality.

    • It involves establishing standards and procedures to ensure that products or services meet those standards.

    • It includes monitoring and evaluating the quality of products or services to identify areas for improvement.

    • It also involves taking corrective action when necessary to address quality issues.

    • Examples include co...

  • Answered by AI
  • Q7. Recollect all definitions
  • Ans. 

    Recall definitions

    • Recall: the ability to retrieve information from memory

    • Definition: a statement that explains the meaning of a word or phrase

    • Research: the systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions

    • Associate: a person who works with others towards a common goal

    • Hypothesis: a proposed explanation for a phenomenon

    • Experiment: a scientific procedure...

  • Answered by AI
  • Q8. Karl fisher titration
  • Q9. Principle of autoclave
  • Q10. Type of HPLC used
  • Ans. 

    The type of HPLC used depends on the specific research requirements and objectives.

    • There are several types of HPLC systems available, including reverse phase, normal phase, ion exchange, size exclusion, and affinity chromatography.

    • The choice of HPLC system depends on the properties of the analyte, such as polarity, size, charge, and affinity.

    • For example, reverse phase HPLC is commonly used for the separation of nonpola...

  • Answered by AI
  • Q11. Questions about project
  • Q12. Uv wavelength
  • Q13. Detector used in uv and HPLC
  • Ans. 

    UV detectors and HPLC detectors are used in research to analyze and quantify substances.

    • UV detectors are commonly used in UV-visible spectroscopy to measure the absorption of light by a sample at different wavelengths.

    • HPLC detectors are used in high-performance liquid chromatography to detect and quantify the components of a mixture.

    • Common types of UV detectors include diode array detectors (DAD) and photodiode array d...

  • Answered by AI
  • Q14. Gc basics
  • Q15. Matrix in maldi ms system
  • Ans. 

    Matrix in MALDI MS system is a substance used to assist in ionization of the sample for analysis.

    • Matrix is a substance that absorbs energy from the laser and transfers it to the sample, causing ionization.

    • The choice of matrix depends on the type of sample being analyzed.

    • Common matrices include alpha-cyano-4-hydroxycinnamic acid (CHCA) and sinapinic acid (SA).

  • Answered by AI
  • Q16. Pharmaceutical impurities
  • Q17. Work breakdown structure
  • Q18. Pka ph
  • Q19. Buffers

Interview Preparation Tips

Interview preparation tips for other job seekers - Very naac hr if they want then only they will give have a good reference in company if not interested in this feild just get away from here....

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Sep 2018. There were 5 interview rounds.

Interview Questionnaire 

5 Questions

  • Q1. Ask about basic knowledge of instrumental and Ask Logical question of analytical development
  • Q2. About development HPLC Prep-HPLC
  • Q3. Validation Quality guidelines
  • Q4. Ask bout past company details Job role
  • Q5. Experience Why to leave past job
  • Ans. 

    Seeking new challenges and opportunities for growth.

    • Desire for new challenges and opportunities for growth

    • Seeking a more stimulating work environment

    • Looking to expand skill set and knowledge

    • Company restructuring or downsizing

    • Relocation to a new area

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: As per my experience

General Tips: I would like to suggest that during interview confidence is very important. Give answers confidentially and maintain honesty threw out the interview. Whenever you don’t know the answer don’t argue with the sir.
Skills: Communication, Body Language, Analytical Skills
Duration: <1 week

I applied via Naukri.com and was interviewed in Nov 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. How to select column , mobile phase selection for method development.
  • Ans. 

    Column and mobile phase selection is based on the analyte properties and separation goals.

    • Consider the analyte's physicochemical properties such as polarity, molecular weight, and stability.

    • Choose a column with appropriate stationary phase chemistry (e.g., C18 for hydrophobic compounds).

    • Optimize mobile phase composition (solvent ratio, pH, buffer) for desired separation.

    • Consider the separation goals (resolution, select...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare most basics of analytical part

I applied via Recruitment Consulltant and was interviewed before Nov 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Technical 

(2 Questions)

  • Q1. ICH guidelines, Impurity profile etc
  • Q2. Stability Guidelines

Interview Preparation Tips

Topics to prepare for Glenmark Pharmaceuticals Research Associate interview:
  • ICH
Interview preparation tips for other job seekers - Go through in ICH guidelines . Like stability, analytical validation etc

I applied via Campus Placement

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Technical 

(3 Questions)

  • Q1. Analytical method development
  • Q2. Principles of Chromatography
  • Ans. 

    Chromatography is a technique used to separate and analyze mixtures of chemicals based on their physical and chemical properties.

    • Chromatography involves a stationary phase and a mobile phase

    • The stationary phase can be a solid or a liquid, while the mobile phase is typically a liquid or gas

    • Different compounds in the mixture will interact differently with the stationary phase, causing them to separate

    • Examples of chromato...

  • Answered by AI
  • Q3. ICH guidelines in method development

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on fundamentals and basic of analytical role
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O2H Group Interview FAQs

What are the top questions asked in O2H Group Research Associate interview?

Some of the top questions asked at the O2H Group Research Associate interview -

  1. Bromintion on aniline and toluene what will be desired produ...read more
  2. 1.How to convert ester to aldehy...read more
  3. Griganard reaction on aldehyde what will be a produ...read more

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O2H Group Research Associate Salary
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₹3 L/yr - ₹4.8 L/yr
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