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

In pharmaceuticals formulation OOS applicable in Raw Material(which is not manufacturing in the company. and purchase by approved vendor)).Why?

Orchid,

1 8901

Is LOD and LOQ values differ for different substrat (eg milk, tissue, egg etc.) for same compound (eg pesticide flumethrin)in same instrument(eg GC)?

Pharmaceutical,

1 4558

Can we use water in process (Intermediate stage) during phase -I validation of water system.

GSK,

1 5231

Can we use Poteble water in process ? How

1 4476

why we use only six bowls for dissolution of a drug

Cipla, Natco, TelePerformance,

1 21488

On which pharmacopoeia basis we can calibrate instruments like HPLC,GC,UV,DISSO,IR etc...

Cipla, Laurus, Micro Labs,

9 25358

why PH range 0-14 explain

DRL, Reddy Labs, Saint Gobain, Viva,

5 64892

What is the difference between QA & QC ?

Optimus,

5 24800

How to make up 100ml of a solution cintaining compound A at 95µg/ml and compound B at30µg/ml for an HPLC reference standard.

3 7547

why we prefer kbr for ftir than kcl?

Aurobindo,

5 14198

How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

Graviti Pharmaceuticals, Vimta Labs,

2341

EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2576

in dissolution in one tablets two molecule one is losartan & second is HCTZ losartam is complies in s1 stage & hctz is complies in s2 stage then how to report result losartan s1 stage result or losartan s2 stage result

Dishman,

1 2737

why we use polystyrene film for ftir calibration?

Rakshit Drugs,

4 19013

when we covert any substance into vapour state from solid state, is it ionized or not?

2 4925

Un-Answered Questions { Chemistry }

What is the role of a catalyst? : Polymer Chemistry

958

mahagenco syllabus for the post of chemist

6429

How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN?

2916

graphaite has higher melting point than fularine

2948

Qc interview questions

1695

Which organic compound is used as a fuel in jet air crafts?

1197

What is phase transfer catalyst?

1049

Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1635

What is buffer?

1062

Which Formula Forms A Link Between The Thermodynamics And Electro Chemistry?

1081

SET Examination Previous Questions

3626

Define the term distribution coefficient in organic chemistry.

1073

What are filters? Why are they used?

1055

Difference between the quantitative analysis and qualitative analysis?

1107

if rsd failed then what require to do?

764

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