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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 8257

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

 2194

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

APM, Graviti Pharmaceuticals, Ranbaxy,

1 10407

How do u differentiate primary

 1 2480

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 9961

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

Aurobindo, Meghmani Organics,

4 10594

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 10253

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

 1604

What is a base line?

 2 10191

what is differance between density and specificgravaty

Neuland,

2 10525

what is defferance between dipolemoment and polarity

Neuland,

1 7386

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

Orchid,

2 14639

WHAT IS USE OF ION PAIR REAGENTS?

 3 8776

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

 2 9325

define electrochemistry?

 1 4054

Un-Answered Questions { Chemistry }

How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2011

why require the ph, buffer during hplc mobile phase?

401

What are the products formed after cod analysis?

824

How to convert -40 of into centigrade?

544

What is control room temperature and which guide line says?

1152




Why is acetone used for cleaning viscometer?

864

How are the waters classified based on the degree of hardness?

644

UV and PDA detector, which have less signal to noise ratio?

638

what is mean by dissolution biowaiver study?

322

How to find peaks in ftir chromatography

1060

Tell me something about Vitamin A test method by HPLC

2201

Sir, please give me previous year question paper for RRB for the post CHEMICAL AND METALLOGICAL ASSISTANT.

2280

composition of brass

1367

What is the limitation of cod?

603

Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

276

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