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Chemistry Interview Questions
Questions Answers Views Company eMail

Is it necessary to inject three replicate for accuracy in AMV.

Amoli Organics,

1 4050

Which is the best mobile phase to separate organic acids using C8 column. And how should the samples be prepared for hplc?

Biocon,

1 5201

What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

2095

why 0.1M OR 1M Perchloric acid standardisation done after 24 hours?

Cipla,

1 6720

What about karl fischer reaction mechanism ?

Aurobindo, Mylan,

2 7260

In IR spectra, generally a molecule vibrates without apply emr or ir light?

2032

Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

IDA,

1906

How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

3336

Arrange the following in their increasing polarity order Carboxylic acid, hydroxyl, phenyl, amino and aldehyde

Aspiro,

1795

What attracted you to analytical chemistry?

1860

what is the difference b/w water content & moisture content

Dr Reddys,

3 6864

what is the detector used in ir spectroscopy

Dr Reddys,

1 2528

which procedure we follow if 6th month of accelerated sample fail?

Dr Reddys,

1 4691

What is third generation HPLC Columns?

Emcure,

2039

what is third integration

Orchid,

2036


Un-Answered Questions { Chemistry }

Actinium has potential applications in cancer treatment. Could you elaborate on how Actinium-225 is used in targeted alpha-particle cancer therapy?

728


In what ways can Protactinium isotopes be used to study fundamental particle interactions and properties?

637


If vendor having more imp than monograph then how to proceed? and how to set spec?

1012


Why is ammonia-ammonium chloride buffer added?

1223


How to calculate coreletion coefficient

1772


what is biorelivent dissolution media?

861


Define:minerals and ores

2631


Explain what is the net charge of a non-ionized atom?

1095


what is stero electronic factor.2 what is steric control factor and what is product control factor

2176


What kinds of structural changes accompany bond-breaking and bond-forming in olefin polymerization? : Polymer Chemistry

1880


How to convert -40 of into centigrade?

1095


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2633


wtat type quations will be sak in ongc exam?

3352


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.

2240


Examine samples of ldpe (sandwich bag, squeeze bottle) and hdpe (milk jug, grocery bag). What are some of the differences in the physical properties of these substances? : Polymer Chemistry

1238