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Zeiss Pharma QC Chemist Interview Questions and Answers
Zeiss Pharma QC Chemist Interview Experiences
1 interview found
I appeared for an interview before Apr 2021.
(1 Question)
- Q1. About technical knowledge
(1 Question)
- Q1. About expectations and Notice period
Interview Preparation Tips
Interview questions from similar companies
I applied via Walk-in and was interviewed in Jan 2022. There were 3 interview rounds.
Total 30 Questions (15 Aptitude and 15 Technical Questions)
(2 Questions)
- Q1. Any Nameing reaction Mechanism
- Ans.
The Grignard reaction involves the addition of an organomagnesium halide to a carbonyl group.
The reaction is named after French chemist Victor Grignard.
It is used to form carbon-carbon bonds and is a key reaction in organic synthesis.
An example is the synthesis of triphenylmethanol from benzophenone and phenylmagnesium bromide.
The reaction proceeds through the formation of a Grignard reagent, which then attacks the car...
- Q2. What is Titration, What is pH
- Ans.
Titration is a technique to determine the concentration of a substance in a solution. pH is a measure of acidity or basicity of a solution.
Titration involves adding a solution of known concentration to a solution of unknown concentration until the reaction is complete.
pH is measured on a scale of 0-14, with 7 being neutral, below 7 acidic, and above 7 basic.
Titration can be used to determine the concentration of acids,...
(1 Question)
- Q1. Waiting For 2 Months
Interview Preparation Tips
- Strong Basic Chemistry Knowledge
I applied via Campus Placement and was interviewed in Jul 2021. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. About my experiance
Interview Preparation Tips
QC Chemist Interview Questions & Answers
Pharmaffiliates Analytics Synthetics
Anonymous
posted on 21 Sep 2022
I applied via Company Website and was interviewed in Aug 2022. There were 2 interview rounds.
HPLc,GC, IR,UV,And basic chemistry related questions
Interview Preparation Tips
- HPLC
- GC
- uv - visible spectrophotometer
- IR
Executive Interview Questions & Answers
Pharmaffiliates Analytics Synthetics
Anonymous
posted on 23 Jan 2021
I appeared for an interview before Jan 2020.
Interview Questionnaire
1 Question
- Q1. Basic chemistry questions and questions related to my job profile..organic synthesis and about general handling of chemicals and different reactions in lab.
Interview Preparation Tips
I applied via Referral and was interviewed in Dec 2020. There was 1 interview round.
Interview Questionnaire
4 Questions
- Q1. What is tha pH?
- Ans.
pH is a measure of the acidity or alkalinity of a solution.
pH stands for 'potential of hydrogen'.
It is a logarithmic scale ranging from 0 to 14.
A pH of 7 is considered neutral, below 7 is acidic, and above 7 is alkaline.
pH is determined by the concentration of hydrogen ions in a solution.
Examples: Lemon juice has a pH of around 2, while baking soda has a pH of around 9.
- Q2. PH presens of hydrogen in sample .
- Ans.
PH represents the concentration of hydrogen ions in a sample.
PH is measured on a scale of 0-14, with 7 being neutral.
A lower PH indicates higher acidity, while a higher PH indicates higher alkalinity.
PH can be measured using a PH meter or through chemical indicators.
The PH of a sample can affect its chemical properties and reactions.
- Q3. What is lod and difference between lod and water.
- Ans.
LOD stands for Limit of Detection. It is the lowest concentration of a substance that can be reliably detected.
LOD is used to determine the sensitivity of an analytical method.
It is usually expressed as a concentration or mass.
Water is a chemical compound composed of hydrogen and oxygen, while LOD is a term used in analytical chemistry.
LOD is important in environmental testing to determine the presence of contaminants ...
- Q4. Lod is loss on drying to determine the volatile impurities and the water is dtermination of presens of moisture and water molecules in sample
Interview Preparation Tips
I applied via Referral and was interviewed in Aug 2021. There were 2 interview rounds.
(3 Questions)
- Q1. Type of distillation column
- Ans.
Distillation columns are classified based on their internal structure and operation.
Distillation columns can be classified as batch or continuous columns.
Common types of distillation columns include simple distillation columns, fractional distillation columns, and steam distillation columns.
The type of distillation column used depends on the specific separation requirements and properties of the components being separa
- Q2. Solvent boiling point
- Q3. Flash point,fire point
(1 Question)
- Q1. Topics related to Compressor, Pump, Boiler
Selected
I applied via Recruitment Consulltant and was interviewed before May 2023. There were 2 interview rounds.
(1 Question)
- Q1. Regulatory Affairs links with change in DS
(1 Question)
- Q1. Family and salary discussion.
Interview Preparation Tips
QC Executive Interview Questions & Answers
Pharmaffiliates Analytics Synthetics
Anonymous
posted on 30 Aug 2020
Interview Questionnaire
3 Questions
- Q1. Most time ask advance technical questions and basic principal, work instrument and functionality concepts. Some tough question arises you mind frequently.
- Q2. Always Basic concept and confidential answer the question
- Q3. All Chromatography techniques question read and write answer in the notepads
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Senior Officer
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