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Chemistry Interview Questions
Questions Answers Views Company eMail

what is difirence b/w ROI&ROE

Pfizer,

1 8470

what is functionality of polymer? how can we get theoretical and practically?

Atul, Domax, Mohrish Pharmaceuticals,

1926

WHY POTASSIUM DICROMATE USING IN UV CALIBRATION

Apotex, Micro Labs, Rene,

1 18276

HOW DOES THE WATER MOLECULES ON CLOTHES EVAPORATES WHEN DIRECT HEAT IS NOT APPLIED BUT CLOTH IS STRECHED AND AIR IS PROVIDED? HINT:THIS METHOD IS USED IN MANY HOMES TO DRY UP THE CLOTHE WHEN DUE TO SOME CONDITIONS DIRECT SUNLIGHT IS NOT PROVIDED.

 1 2783

What is the Baseline in HPLC.

Teva API,

2 11396

Why dst is used in kf for factor determination less than 1

Reddy Labs, Sun Pharma,

4 16152

why should we calibrate pH meter with 4,9.2 and 7.4 buffers particularly?

Celon Labs,

5 13273

why inject diluted standard solution in related substance analysis by HPLC?

Biocon, Sun Pharma,

3 16010

What is the Calcultion of S/N Ratio.

 2 10228

What is the accepted microbial load in APIs as per USP.........?

 2006

what are the checklist need to maintain in API manufacturing area as per USP requirements.......?

 2347

Purified water Microbial load limits as per USP..........?

 1 4016

Principle of HPLC in one sentance

Syngene,

8 16187

Why are using in Hi,zero air, Ni gass are used GC

Aurobindo, ELBS, Vimta Labs,

5 12434

what is the balance drift?

Torrent Pharma,

2 10553

Un-Answered Questions { Chemistry }

Which organic compound is used as a fuel in jet air crafts?

774

Suppose u have combipack product and u get 2 or more peaks which are other than there placebo then what we can do

1896

Explain how can you tell if there is a dipole moment or not?

557

We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1303

in each media we require to use SLS? how to proceed?

283




for inorganic molecules require to do RS, Assay and disso?

240

What is the difference between Assay and Purity?

968

Can a Nascent Hydrogen be used for fuel cell without damaging the equipment and if so how good would it be compared to other type of hydrogen.

1723

What is blank solution?

614

in OSD forms require to use gas chromatography?

324

What is titration?

593

Why we use DPPH in ESR and DPH in fluorescence spectroscopy?

2065

what is the indicator used?

576

how you start the solubility study?

331

how to qualify the impurity?

306

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