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The question covers various topics in organic chemistry including named reactions, NMR spectroscopy, and general concepts.
Named reactions are specific organic reactions that have been given a name to make them easier to remember and discuss. Examples include the Grignard reaction and the Diels-Alder reaction.
NMR spectroscopy is a technique used to determine the structure of organic molecules by analyzing their nuclear ...
A 50 ppm solution contains 50 parts of solute per million parts of solution.
ppm stands for parts per million.
It is a measure of concentration.
In a 50 ppm solution, there are 50 parts of solute per million parts of solution.
For example, if we have a 1 million mL solution, there would be 50 mL of solute in it.
posted on 22 Oct 2021
I applied via Campus Placement and was interviewed before Oct 2020. There were 3 interview rounds.
posted on 6 Feb 2021
I applied via Recruitment Consultant and was interviewed in Aug 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Sep 2018. There were 5 interview rounds.
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posted on 18 Dec 2021
I applied via Naukri.com and was interviewed in Nov 2021. There was 1 interview round.
Column and mobile phase selection is based on the analyte properties and separation goals.
Consider the analyte's physicochemical properties such as polarity, molecular weight, and stability.
Choose a column with appropriate stationary phase chemistry (e.g., C18 for hydrophobic compounds).
Optimize mobile phase composition (solvent ratio, pH, buffer) for desired separation.
Consider the separation goals (resolution, select...
posted on 10 Nov 2022
I applied via Recruitment Consulltant and was interviewed before Nov 2021. There were 2 interview rounds.
posted on 17 Nov 2022
I applied via Campus Placement
Chromatography is a technique used to separate and analyze mixtures of chemicals based on their physical and chemical properties.
Chromatography involves a stationary phase and a mobile phase
The stationary phase can be a solid or a liquid, while the mobile phase is typically a liquid or gas
Different compounds in the mixture will interact differently with the stationary phase, causing them to separate
Examples of chromato...
Indicators are substances that change color in response to changes in pH levels, helping to determine the acidity or alkalinity of a solution.
Indicators are typically weak acids or bases that dissociate in water and change color based on the concentration of H+ ions.
Common indicators include phenolphthalein, litmus, and bromothymol blue.
The color change of an indicator is due to a shift in the equilibrium between the a...
posted on 23 Aug 2022
I applied via Approached by Company and was interviewed in Feb 2022. There were 2 interview rounds.
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