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I was interviewed in Jan 2025.
The pH range of water is typically between 6.5 and 8.5.
Water with a pH below 6.5 is considered acidic
Water with a pH above 8.5 is considered alkaline
Pure water has a pH of 7, which is considered neutral
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 with the sample mixture.
Different compounds in the mixture will move at different rates, allowing for separation.
Examples include gas chromatography, liquid chromatography, and thin-layer chromatography.
I applied via Company Website and was interviewed before Aug 2023. There was 1 interview round.
Quality control is a process used to ensure that products or services meet specific standards and requirements.
Quality control involves monitoring and testing products or services to identify defects or errors.
It aims to prevent defects from reaching customers and ensure consistent quality.
Examples of quality control methods include statistical process control, inspection, and testing.
Quality control is essential in in...
Handle the instrument with care and follow proper procedures
Always read the instruction manual before using the instrument
Ensure the instrument is calibrated and maintained regularly
Use the instrument only for its intended purpose
Clean the instrument after each use to prevent contamination
Store the instrument in a safe and secure location when not in use
Core subject and basic and moderate and difficult level of question in chemistry
I applied via Walk-in and was interviewed in Aug 2023. There was 1 interview round.
Molarity is a measure of the concentration of a solute in a solution, expressed as the number of moles of solute per liter of solution.
Molarity is calculated by dividing the number of moles of solute by the volume of the solution in liters.
It is represented by the symbol 'M'.
For example, a solution containing 0.5 moles of solute in 1 liter of solution has a molarity of 0.5 M.
Hetero interview questions for designations
I applied via Recruitment Consulltant and was interviewed in Mar 2022. There were 2 interview rounds.
Know about periodic table and some formulas like named reactions
I applied via Referral and was interviewed before Nov 2020. There was 1 interview round.
Top trending discussions
I applied via Walk-in and was interviewed before Feb 2021. There were 2 interview rounds.
I applied via Company Website and was interviewed in Aug 2020. There was 1 interview round.
I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
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 transform into new substances.
Chemistry is essential in fields like pharmaceuticals, food science, and environmental science.
Examples include studying the properties of elements on the periodic table and an
The pH formula is used to calculate the acidity or alkalinity of a solution.
pH = -log[H+]
pH = -log[H3O+]
pH = log(1/[H+])
pH = log(1/[H3O+])
There are 118 elements in the periodic table.
There are 118 known elements in the periodic table.
Elements are organized by atomic number, electron configuration, and recurring chemical properties.
Examples of elements include hydrogen, oxygen, gold, and uranium.
Noble gases are a group of chemical elements with very low reactivity and full outer electron shells.
Noble gases are located in Group 18 of the periodic table.
They are also known as inert gases because they rarely react with other elements.
Examples of noble gases include helium, neon, argon, krypton, xenon, and radon.
Avogadro's number is a constant representing the number of constituent particles (usually atoms or molecules) in one mole of a substance.
Avogadro's number is approximately 6.022 x 10^23.
It is named after Italian scientist Amedeo Avogadro.
It is used in chemistry to relate the mass of a substance to the number of atoms or molecules it contains.
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