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

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

8 18916

what is the difference between simple distillation and differential distillation

1 10247

Describe your experience with analytical instrumentation?

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

3 38893

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

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

1 9936

Describe your experience with quality assurance and quality control analyses?

Aurobindo, Dr Reddys, MSC, Reddy Labs,

11 38987

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

Apex, BNM, Ranbaxy,

2661

Do you have experience with organic extractions or tissue digestions?

GVK Biosciences,

1 8050

How many stereoisomers of phenylpropylene oxide are there?

Mankind,

1 6626

How many isomers have the name bromomethylcyclopentane?

5 13506

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 6644

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

Bluepin,

5 18614

which functional groups are present in cortisone?

2 24085

How many degrees of unsaturation are there in benzene?

2 12832

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

3 7047

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

8 80189

Un-Answered Questions { Chemistry }

Why is sulphuric acid added during the preparation of standard fas solution?

1011

what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

9946

how we change 0.1N KmNo4 solution to 0.01N KmNo4 solution.

1987

How are ph and pka related?

1074

why are measure gas flow " ml " in Gas chromatography

1616

in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?

686

Explain Thiele's structure for benzene. What is the difference between thiele's structure and modern structure (resonance hybrid) of benzene?

5158

How to set analyticl specification for combination products?

698

how can karl fischer's titration be used to estimate alcohols??????

2698

Principle of single pan analytical balance

5112

If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

775

Explain the use of glacial acetic acid?

1058

why is mgcl used in edta titration

1587

How does Protactinium contribute to our understanding of Earth's history and the behavior of elements in natural systems?

562

What is stepping ripple and step accuracy

1128

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