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 determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

Glenmark, Neuland,

2 9638

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2682

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

APM, Graviti Pharmaceuticals, Ranbaxy,

1 11628

How do u differentiate primary

1 3297

WHEN AN UN KNOWN SAMPLE IS GIVEN TO U,HOW WILL U START THE ANALYSIS(ie FIRST WHICH TEST TO BE DONE,NEXT,THEN NEXT),HOW WILL U DECIDE WHICH TYPE OF ANALYSIS TO BE DONE FOR IT?

Aurobindo,

2 11020

WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR

Aurobindo, Meghmani Organics,

4 12517

IN pH CALIBRATION,CALIBRATION IS DONE FOR pH METER OR ELECTRODE?HOW WILL YOU JUDGE THAT THE METER TO BE CALIBRATED WITH 4,7,9.2 BUFFERS?EXPLAIN TEMPERATURE EFFECTS ON pH.

Aurobindo,

1 11157

AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

2116

What is a base line?

2 11496

what is differance between density and specificgravaty

Neuland,

2 11897

what is defferance between dipolemoment and polarity

Neuland,

1 8348

In standard weight box used for calibration of analytical balance there are two numbers (Qty) of 20mg, 200mg,2.oGM weights. Why?

Orchid,

2 16192

WHAT IS USE OF ION PAIR REAGENTS?

3 10664

How to calculate signal to noise ratio by this formula 2H/h where h from where and how to measure

2 10712

define electrochemistry?

1 4905

Un-Answered Questions { Chemistry }

what type of question will ask in the interview of lab chemist.

3366

Explain extraction of ephedrine from a mineral block?

1111

What is the principle of Particle size analysis and zeta potential

2695

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2726

Define oxidation potential and reduction potential? : Electrochemistry Corrosion

1271

why in uv calibration in Limt of absorbance parameter specific absorbance is calculated only for selected wavelength

2764

what is the relation between Total organic carbon and Chemical Oxygen demand?

2994

composition of stainless steel

1880

why we need to synthesize impurities of midazolam

2318

How is hardness of water caused?

1180

What is mole?

1131

What is the purpose of adding urea?

1442

Acid value definition is number milligrams of koh required to nuetralise the acid present in one gram oil & fats but why not use naoh for nuetralisation?

1205

How do we fix the sample concentaryion in hplc method development. What is the basis?

1253

i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2783

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