MSN Laboratories QA Executive Interview Questions, Process, and Tips

Chemistry is the study of matter, its properties, composition, and interactions.

• Chemistry involves understanding the structure and behavior of atoms and molecules.

• It explores how substances react with each other and the energy changes that occur during these reactions.

• Chemistry is essential in fields such as pharmaceuticals, materials science, and environmental science.

• Examples include studying the properties of elemen...read more

Analytical chemistry is the branch of chemistry that deals with the analysis of substances to determine their composition and properties.

• It involves techniques such as spectroscopy, chromatography, and mass spectrometry.

• Analytical chemistry is used in various industries such as pharmaceuticals, environmental monitoring, and food testing.

• It plays a crucial role in quality control, research, and development processes.

• Ana...read more

Gas chromatography is a technique used to separate and analyze compounds in a gas mixture based on their interaction with a stationary phase.

• Gas chromatography involves a sample being vaporized and injected into a column with a stationary phase.

• Compounds in the sample interact differently with the stationary phase, causing them to separate based on their properties.

• The separated compounds are detected as they exit the ...read more

Physical properties in analytical chemistry refer to characteristics of substances that can be observed or measured without changing their composition.

• Physical properties include color, odor, density, melting point, boiling point, solubility, and conductivity.

• These properties help in identifying and characterizing substances in analytical chemistry.

• For example, the melting point of a compound can be used to confirm its...read more

Titration is a technique used in chemistry to determine the concentration of a substance in a solution.

• Titration involves slowly adding a solution of known concentration to a solution of unknown concentration until the reaction reaches its endpoint.

• The endpoint is usually indicated by a color change or other observable change.

• Titration is commonly used in analytical chemistry to determine the concentration of acids, ba...read more