Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

General Chemistry (478)
Chemistry AllOther (190)

Chemistry Interview Questions

Questions Answers Views Company eMail

when we have polar type of sample and solvnt hen which type of stationry phase we have to use

3 7550

what is motor rotation in case of sucrose

1 4551

why equlirium conatant of water have 14 value

GVK Biosciences,

1 3174

wen v have polr solvent then which type of column use in hplc

2 8146

What is Threshold in hplc?

Hetero,

2 20597

What do you mean by UV cut off limit

Cipla,

1 5464

Why we use Caffeine in hplc calibration

Emcure, Laurus,

2 13549

what is the meaning of stress study?

Reddy Labs,

2 5209

what is the difference between potentiometric assay and hplc assay

Parabolic,

2 18493

why we are using buffer solutionas as a mobile phase in hplc.

2 11532

importance of internal standard and in what conditions it is used?

1 4661

If Concentrated HCl... Already 37%... So, How to prepare 10% HCl from Conc. HCl (37%)?

Manish Pharma, MOL, S S Pharmachem,

7 19417

how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2549

how to select short coloum and long coloumn for new molecule

Rampex Labs,

2390

what is poarimeter, why it is used in pharma,and explain briefly about polarimeter?

GVK,

3 10836

Un-Answered Questions { Chemistry }

What does it mean for a molecule or a ligand to be "chiral"? What properties does chirality impart to a molecule? : Polymer Chemistry

1003

in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

731

how require to select dissolution media? what is discrimination?

765

Protactinium has a relatively short half-life for some of its isotopes. How does this characteristic impact its practical uses and research?

538

What is the chemical formula of alum?

1086

what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

1994

Why ph scale range is 14?

1063

why do antimony and bismuth have the same electron affinities?

2419

What are the primary considerations in extractables and Leachables ?

2241

What is the easiest, (Less compound mixtures, basically), way to make coca.. ;)

2298

How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

3326

How hydrate is forming along with API?

2289

Explain what is an oxidizing agent?

1026

if identification threshold crosses the limits then what next step?

827

why use of sulfuric acid in roi test in pharmaceutical industry

2455

For More Un-Answered { Chemistry } Questions Click Here