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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 3103

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

Biocon,

1 4094

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

 1536

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

Cipla,

1 5742

What about karl fischer reaction mechanism ?

Aurobindo, Mylan,

2 6175

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

 1424

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

IDA,

1365

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

 2517

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

Aspiro,

1269

What attracted you to analytical chemistry?

 1331

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

Dr Reddys,

3 5309

what is the detector used in ir spectroscopy

Dr Reddys,

1 1640

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

Dr Reddys,

1 3833

What is third generation HPLC Columns?

Emcure,

1493

what is third integration

Orchid,

1481

Un-Answered Questions { Chemistry }

what you do when compound having dwel wavelength?

267

What is molality?

552

What forms the basis for colorimetric determination?

707

Actinium is often considered a rare and scarce element. How does its rarity impact its industrial uses and research purposes?

96

What can you contribute to the company?

2184




Write the each half cell reaction and also net cell reaction for a cell

2428

Any one is alembic pharmaceutical ltd. On starting to job ?

1222

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

2186

In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

2699

WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

630

for which product require to do content uniformity? what is limit of cu?

300

in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

318

[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

335

UV and PDA detector, which have less signal to noise ratio?

632

How can the GC or HPLC method is selected to determine the impurity profile in drug product?

6846

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