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 9022

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 4648

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

GSK,

1 5330

Can we use Poteble water in process ? How

1 4566

why we use only six bowls for dissolution of a drug

Cipla, Natco, TelePerformance,

1 21637

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

Cipla, Laurus, Micro Labs,

9 25713

why PH range 0-14 explain

DRL, Reddy Labs, Saint Gobain, Viva,

5 65214

What is the difference between QA & QC ?

Optimus,

5 25035

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 7710

why we prefer kbr for ftir than kcl?

Aurobindo,

5 14406

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,

2389

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

2636

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 2802

why we use polystyrene film for ftir calibration?

Rakshit Drugs,

4 19263

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

2 5047

Un-Answered Questions { Chemistry }

why lead acetate s used in the Limit test of Arsenic? what role Lead Acetate plays????

17846

What is the difference between spectro meter and spectro photo meter?

11511

some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

2653

What is molar conductivity?

1046

In IR spectra, generally a molecule vibrates without apply emr or ir light?

1979

How is measurement of ph made?

1056

all types of questions asked at the cipla interview

4685

What are common snowflake shapes?

2495

in which situation require to change rs specification?

749

How is hardness of water caused?

1132

How is the accuracy of the method determined?

1108

Explain what are enzymes?

1163

write short note on steroids,terpenes,prostagladins,and phospholipids.

6393

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,

2602

Explain the protein in chemistry?

1060

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