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

Retention time & Relative Retention time Definition & between difference? How to Calculate response factor(RF) & relative response factor(RRF)?

MSN Pharma, Titan,

3 20472

why are using toluene in uv calibraion in resolution performance

MSN Pharma,

2 11021

why we make titiration of Iron with EDTA ?

Cipla, Sitec Labs,

1 9023

why antharacene use hplc calibration

ITC Infotech,

1 3807

hardness of distilled water

CAPL, Parabolic,

1 5880

What is difference b/w IR&NIR

Apotex,

1 5734

Why does boiler drum ph maintain from 9.5 to 10.2

1 7762

What is the definition of water content or moisture content,what is the procedure going on w.c amalysis?

Cipla, KIYI,

1 10973

how can you determine a compound acidic or basic?

Celon Labs, Cipla,

2 10687

For LOD and LOQ determination which method is accurate? (slopemethod or s/n ratio method)

Reddy Labs,

4 11486

how to develop the shorter run time for pharmacopeial methods having 100 min run time?

Reddy Labs,

3 11003

How you start the method development of unknown compound.

1 5848

How to determine water content of bis tetrazole amine mono ammonium salt

3450

Is there any difference in principal of reverse phase and normal phase chromatography? and why? Please update. Thank and regard

MSN Pharma,

3 11255

Why Nitric acid can be stored in Aluminium containers?

1 6668

Un-Answered Questions { Chemistry }

Which is the indicator used in the determination of cao I cement solution?

949

Name the 4 physical states of matter?

1014

What is importance of pH in the Heavy metal test and How it effect on the test results?

2247

why do antimony and bismuth have the same electron affinities?

2419

we can use expired sample for validation and analyst qualification?

776

Explain the term aliquot and diluent?

1291

What is the role of silver sulphate?

1073

on saturation solubility study data how we can find out the bcs class of drug?

853

How is the measurement of ph made?

1026

In performance Check of GC Why Hexadecane Peak is Considered

3008

How would you decide dissolution medium for NCE compound of class I drug

2222

what is the purpose of using cyclhexane in synthesis?

4214

Can you provide an overview of the properties and characteristics of Protactinium and its placement in the periodic table?

619

Explain the process of obtaining Protactinium from its primary sources and its purification methods.

621

What is related substance by HPLC impurity limits as per USP?

1060

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