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 7789

what is motor rotation in case of sucrose

1 4688

why equlirium conatant of water have 14 value

GVK Biosciences,

1 3308

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

2 8351

What is Threshold in hplc?

Hetero,

2 20801

What do you mean by UV cut off limit

Cipla,

1 5599

Why we use Caffeine in hplc calibration

Emcure, Laurus,

2 13724

what is the meaning of stress study?

Reddy Labs,

2 5421

what is the difference between potentiometric assay and hplc assay

Parabolic,

2 18769

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

2 11725

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

1 4819

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

Manish Pharma, MOL, S S Pharmachem,

7 20073

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,

2663

how to select short coloum and long coloumn for new molecule

Rampex Labs,

2538

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

GVK,

3 11129

Un-Answered Questions { Chemistry }

Why are use silicon oil mr?

1261

Define electro plating and electroless plating? : Electrochemistry Corrosion

1118

In which situation we require to analytical method validation of excipient?

853

What is acid anhydride of h2co3?

1072

Difference between the quantitative analysis and qualitative analysis?

1258

How we can identify process related and degradation impurity in single method with short period?

870

why we are using hexane in calibration of number of drop per mL

1806

What is the difference between chromatographic purity and related substances?

1475

Protactinium-233 can be bred from Thorium-232. Describe the process of breeding Protactinium-233 and its significance for nuclear fuel production.

699

What is wave number?

1189

What is the bluish white precipitate formed after adding ammonia solution?

1153

If combination product how require to identify which imp is of which api?

872

Why do we use vaccum in Loss on drying test?

1736

in sampling of raw material which side is pasted sampled labels

1893

How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2617

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