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I applied via LinkedIn and was interviewed before Apr 2023. There was 1 interview round.
HPLC is used for separating compounds in liquid phase, while GC is used for separating compounds in gas phase.
HPLC stands for High Performance Liquid Chromatography, while GC stands for Gas Chromatography.
HPLC is used for analyzing compounds that are heat-sensitive or non-volatile, while GC is used for volatile compounds.
HPLC typically uses a liquid mobile phase and a solid stationary phase, while GC uses a gas mobile ...
Organic reaction mechanisms involve step-by-step processes by which organic molecules undergo chemical transformations.
Nucleophilic substitution: involves the attack of a nucleophile on an electrophilic carbon atom, leading to the substitution of one group with another.
Electrophilic addition: occurs when an electrophile reacts with a nucleophile to form a new bond, typically seen in alkene reactions.
Elimination: involv...
NMR spectroscopy is suitable for organic reactions due to its ability to provide detailed structural information.
NMR spectroscopy is commonly used to analyze organic compounds and reactions.
It can provide information on the connectivity of atoms, functional groups, and stereochemistry.
Examples of NMR techniques include 1H-NMR and 13C-NMR.
NMR spectroscopy is non-destructive and can be used to monitor reactions in real-t
The IR value for carbonyl compounds is typically around 1700-1750 cm^-1, while other functional groups have characteristic IR values.
Carbonyl compounds typically show a strong absorption band around 1700-1750 cm^-1 in the IR spectrum.
Alcohols usually have a broad peak around 3200-3600 cm^-1 due to O-H stretching.
Amines exhibit N-H stretching vibrations around 3300-3500 cm^-1.
Alkenes show C=C stretching vibrations aroun...
I appeared for an interview in Oct 2024, where I was asked the following questions.
I appeared for an interview in Feb 2025.
Pfizer interview questions for popular designations
I appeared for an interview before Apr 2024, where I was asked the following questions.
Get interview-ready with Top Pfizer Interview Questions
I applied via Recruitment Consulltant and was interviewed in Jun 2024. There was 1 interview round.
I have led and been involved in over 10 data science projects in various industries.
Led and managed over 10 data science projects from inception to completion
Collaborated with cross-functional teams to deliver impactful solutions
Utilized advanced analytics and machine learning techniques to drive business insights
Examples: Predictive maintenance for manufacturing, customer segmentation for retail
Confusion matrix is a table used to describe the performance of a classification model. ROC curve is a graphical representation of the true positive rate against the false positive rate. AUC is the area under the ROC curve.
Confusion matrix is a 2x2 table that shows the true positive, true negative, false positive, and false negative values of a classification model.
ROC curve is a plot of the true positive rate (sensiti...
I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
Increased company revenue by 20% through strategic partnerships and improved operational efficiency.
Implemented cost-saving measures resulting in a 15% reduction in expenses
Led a successful marketing campaign that increased customer base by 30%
Introduced new technology that improved patient care and satisfaction
Received industry recognition for excellence in healthcare management
Machine learning algorithms are mathematical models used to analyze data and make predictions.
ML algorithms learn from data to make predictions or decisions
They can be supervised, unsupervised, or semi-supervised
Examples include linear regression, decision trees, support vector machines
I applied via Company Website and was interviewed in Jul 2024. There was 1 interview round.
Core values, Experience, Behavorial
I appeared for an interview in Sep 2024, where I was asked the following questions.
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The duration of Pfizer interview process can vary, but typically it takes about less than 2 weeks to complete.
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