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Chemistry Interview Questions
Questions Answers Views Company eMail

Which one of the Following is not Aromatic? 1)Cyclotetrane 2)Benzene 3)Napthalene 4)Anthracene

8 19411

what is the difference between simple distillation and differential distillation

1 10455

Describe your experience with analytical instrumentation?

Alembic, Apotex, Aurobindo, DLF, Enal Drugs, Lupin, Natco, Pharma,

3 39287

Do you know what Trace metal clean technique is?describe that technique?

Mylan, Nirma, Oil and Gas Jobs, Reddy Labs,

1 10102

Describe your experience with quality assurance and quality control analyses?

Aurobindo, Dr Reddys, MSC, Reddy Labs,

11 39618

Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

Apex, BNM, Ranbaxy,

2746

Do you have experience with organic extractions or tissue digestions?

GVK Biosciences,

1 8187

How many stereoisomers of phenylpropylene oxide are there?

Mankind,

1 6774

How many isomers have the name bromomethylcyclopentane?

5 13900

Pure (S)-2-butanol has a specific rotation of +13.52 degrees. A sample of 2-butanol prepared in the lab and purified by distillation has a calculated specific rotation of +6.76 degrees. What can you conclude about the composition?

1 6865

Trimethylamine is a pyramidal molecule. What is the hybridization at nitrogen?

Bluepin,

5 18951

which functional groups are present in cortisone?

2 24289

How many degrees of unsaturation are there in benzene?

2 13020

What are the major products formed when acetic acid and ethanol are added to water and the pH is adjusted to 7.0?

3 7302

What organic compounds have the basic formula (CH2O)n?

8 80711


Un-Answered Questions { Chemistry }

Why purity angle should be less than purity threshold in peak purity

4306


why xterra column require to use at higher ph?

974


why we should take dst factor for below 1%moisture samples

2718


what is silicon chip

2153


what happens to the unit particles of a solute when it dissolves on a liquid?

2251


Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

800


Explain the some importance of organic chemistry?

1213


What are the methods used to control the corrosion? : Electrochemistry Corrosion

1070


what are the standard methods for HPLC?

2834


Why we check moisture,ash & AIA in product

1945


What is similarity factor and its use in api strength?

1367


in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

890


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

2461


What is intact assay method development.....?

2764


What are the uses of glacial acetic acid?

1183