Chemistry Interview Questions
Questions Answers Views Company eMail

What is Formula of Potency calculation on Dried basis, As is basis& Anhydrous basis.

Laurus, Teva API,

11 80111

Why base line not start from zero in GC Chromatography analysis.

Orchid,

1 5963

Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

Apex Encon Projects Private Limited, Cipla,

2097

What is OOS AND OOT?

Alembic, Famy Care Ltd,

2 4693

the reaction in which large molecule split up to their smaller units by the addition of water molecules is called as 

1 3015

can i use hplc detector to uplc and why?

Mylan, SGS,

1799

what is the maximum flow rate in prep hplc

Meril Life Science,

1 3126

how will you do the prep for unstable componds?

AMRI, CTX Life Sciences, Piramal Healthcare,

1429

how can u seperate polar compounds in hplc ?

Meditab, Piramal Healthcare,

1 6734

what is the difference between hplc and uplc?

Fresenius Kabi, Mylan,

5 8253

what is the basis of separation in chromatography?

Anthem,

1 5406

what is the diference between spectroscopy and chromatography

Cipla, PharmChem, Reliance,

2 9856

Why we have to take 42gm of sodium hydroxide instead of 40gm for preparation of 1M Sodium hydroxide as per Pharmacopia? Whether it means the formula for calculating molarity was wrong? 

Claris Otsuka, Ranbaxy,

5 13362

what is internal standard define

Apex, Coromandel International Limited, Hikma Pharmaceuticals, IPCA,

2 3735

pharma industries oriented

Apex, Micro Labs, Zydus Cadila,

1673


Un-Answered Questions { Chemistry }

Protactinium has a relatively short half-life for some of its isotopes. How does this characteristic impact its practical uses and research?

122


How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN?

2426


what are the role of chemistry education in sustainable development

2148


Explain the properties of carbohydrates?

532


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

1302






why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

1747


Define a substituted hydrocarbon?

600


What is stray light in uv what are units for stray light

1005


Why is the color of the indicator drop remains the same at the end point?

752


if peak get problamatic then what require to do?

309


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

2876


hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.i want sample RESUME,OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com

1798


In what ways can Actinium be used in conjunction with other elements or compounds to create new materials or compounds with specific properties?

135


why we need to synthesize impurities of midazolam

1768


which situation gc hs and gc als require to use?

288