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

why does the result variation in hplc and gc with same sample ?

Matrix,

4 12692

How will you select mobile phase in HPLC Method Development

4 18440

how to regulate noise in hplc ?

2 9959

why results are variation in same samples analysis in gc and hplc ?

2 9472

why base line not start from zoro in GC Chromatograme.

Merck,

1 8782

What is cleaning validation of rinse and swabe and its limit with caculation formula.

5 12501

In order to avoid the pyridine catalyst use in many synthesis which is harmfull to environment, which catalyst can be used....?

Hetero, Lupin, Reddy Labs,

2461

what is the purpose of using cyclhexane in synthesis?

1 4328

what is the difference between c-8 and c-18 column

7 24512

why deutiriated chloroform used in NMR for sample prepration. what reaction takes place.give reasons

1 7772

how do u optimise hplc method

1 7860

name any insolvent compound?

1 5474

How to calculate %w/w and %v/v of a component(or solvent)by NMR

ACME, Vimta Labs,

1 9307

How to prepare 10% HCl from 36.5% HCl solution.

Dr Reddys,

5 123742

How to prepare 50 ppm ammonia solution form 25% ammonia solution?

Cadila, IIT,

8 31111

Un-Answered Questions { Chemistry }

What is the reaction that occurring between fas and potassium dichromate?

1348

What do you mean by redox reaction? : Electrochemistry Corrosion

995

Which is the highly polar and highly non polar column in HPLC?

2352

What is similarity factor and its use in api strength?

1367

Why six unit used for precision?

1409

What is the calibration of uv process and preparation

2049

in api coa contains only process impurities and in product coa contains degradation impurities?

740

Define:minerals and ores

2632

What is molality?

1037

how to prepare the 0.001M tio2

2441

What is viscosity-coefficient of a liquid?

1488

1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

1900

Loss of linearity in tkn analysis, possible reasons?

1373

what is meant if aluminium sulfate contains 30% basicity?

2241

Fresh form of water is obtained from?

1227

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