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

What are the advantages of soapy detergents over soapless

2 15376

what is mass spectra ? why it is necessary ?

1 5953

difference between IR & NMR spectroscopy ?

9 41178

what v define from IR & NMR spectroscopy ?

Sun Pharma,

2 8394

if v use HELIUM & ARGON instead of NITROGEN as a mobile phase what happen in GC SYSTEM ?

Cipla, Reddy Labs,

5 13579

what is relationship between absorption and transmittance in u.v.?

Orchid,

11 33829

why we are using polystyrene film for calibration of I.R spectroscopy?

Abbott, Andhra Organics, Intas, Kemwel, Reddy Labs, RRR, Veritas, Zydus Cadila,

12 65659

why we cannot analysis below 200nm in u.v?

2 14544

what split ratio in gas chromatography.

Cipla, Glochem,

9 50256

what is the colour of protein casein? is it whitish or colourless?

Google,

1 4086

significane of detector wavelength accrucy in calibration of hplc

1 6817

signifcance of detector lenearity in calibration f hplc

3 9163

injection volume accruacy test i calibration of hplc

HLL,

3 20187

verification of wave number why you are use in IR calibration

2 8160

control of resolution in calibration of IR

3 9630

Un-Answered Questions { Chemistry }

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

1652

why we are using hexane in calibration of number of drop per mL

1739

Which are the diffrent grades of api in pharma?

772

Why is estimation of copper done at 620 nm wave length?

1439

can we Consider the Purity threshold and Purity angle in place of peak purity for the specificity test for method verification

1843

what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

9248

Consider the polymerization of 1,2-dichloroethylene, h(cl)c=c(cl)h. What structural variations are possible in poly(1,2-dichloroethylene)? : Polymer Chemistry

1359

How to start the dissolution development for unknown tab?

1679

Can you provide a brief overview of the properties and characteristics of the chemical element Actinium?

526

what things are suitable for investigatory project?

2734

WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2607

Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

2184

What is glacial acetic acid? What are its uses?

1071

I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

3540

why is acetic acid less conductive than hcl?

1162

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