Chemveda Life Sciences Instrument Engineer Interview Questions and Answers

Q1. Functional group conversions
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Q2. 1H-NMR values of organic compounds and how you analyze LCMS
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Understanding 1H-NMR values of organic compounds and analyzing LCMS involves knowledge of spectroscopy and chromatography techniques.
• 1H-NMR values provide information about the chemical environment of hydrogen atoms in a molecule.

• Analyzing LCMS involves separating and detecting ions based on their mass-to-charge ratio.

• Interpretation of 1H-NMR and LCMS data requires knowledge of organic chemistry and spectroscopy techni...read more
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Q1. Tell me about your self, salary you are expecting.
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I am a highly motivated and experienced Research Associate seeking a challenging role. As for salary, I am expecting a competitive compensation package based on my qualifications and experience.
• Experienced and motivated Research Associate

• Seeking a challenging role

• Expecting a competitive compensation package based on qualifications and experience
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English ,Aptitude and reasoning

Q1. What is chromatography
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Chromatography is a technique used to separate and analyze mixtures of chemicals based on their properties.
• Chromatography involves a stationary phase and a mobile phase that interact differently with the components of the mixture.

• The components of the mixture separate based on their affinity for the stationary phase versus the mobile phase.

• Common types of chromatography include gas chromatography, liquid chromatography...read more
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Q1. Tell me about your self
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Q1. Tell any name reactions to form new c-c bond without metal catalyst?
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Q2. If you have to separate acid from a acid-base mixture in liquid state, how will you do that?
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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 ...read more
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Q1. Why you are leaving from your current job?
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Q2. What are your salary expectations?
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Q1. Subject question from manager
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Q2. About chemisety and instruments handling
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Q3. Instrument troubleshooting
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Q1. Packages discussed
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In first round there is a total of 100 question 50 from chemistry, 25 from maths and 25 from english. You have to score atleast 50 to clear the 1st round.

Q1. First they ask some basic naming rxns for me they asked curtius rxn
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Q2. 2nd they ask basic concepts in stereochemistry
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Q3. 3rd they ask basics in assymetric synthesis
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Q4. 4th they ask abt LCMS and HNMR..
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Q5. 5th they ask about some oxidation and reducing agents.
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Q1. They discuss about company and salary structure..
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Written exam

Q1. About Analytical Skils
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Q2. About HPLC basic question and Basic Organic also GCMS
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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...read more
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Q1. All the basic concepts
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