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

In acid base titration, after complet consumption of HCl by NaOH, addition of next drop of NaOH will give pink colour with phenolpthalein indicator. Why this pink colour appear? Why not blue, black, green or anything elese?

3 11532

Why we are using only KBr in IR spectrometer why not KCl

Dr Reddys,

10 35738

WHAT IS ORGANIC CHEMISTY ? GIVE ME ANSWER AS AN M.SC LEVEL

Zydus Cadila,

9 14280

why potassium dicromate use in calibration of UV VIIBLE SPECTROCOPY ?

3 8790

how to pepare 6.8 pH phosphate buffer

10 83066

what is pK & pKa value

3 13856

what is range of Vivible UV ? What is UV& Vivible spctroscopy use for ?

6 12800

What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?

Cipla, Reddy Labs,

4 41504

What is difference between Primary and secodary reference standard?

2 19638

Give the IUPAC name. i) [Co(NH3)5SO4]Cl ii) [Co(NH3)5Cl] SO4 iii) [CoCl.CN.NO2.(NH3)3]

3 44187

Give the formula of the following compound. i) Chloropentaamminecobalt(III) chloride ii) tris(ethylenediamine)cobalt(III)chloride iii) tetraamminesulphatocobalt(III)nitrate

1 6669

Discuss role of coordination chemistry in: (a) Biological system (b) Analytical chemistry (c) Medicinal chemistry

3297

Out of (CH3)3C- and (CH3)2CH- carboanion, which is more stable and why?

2 10576

WHAT IS UNIT OF ABSORBANCE AREA IN HPLC OR UV DETECTER

8 27938

why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate

1 5496

Un-Answered Questions { Chemistry }

why digestion require in icpms?

774

Which are the diffrent grades of api in pharma?

772

What is a proteic unit?

2702

What is kentchin?

1040

hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.i want sample RESUME,OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com

2335

How to start the dissolution development for unknown tab?

1680

what are the role of chemistry education in sustainable development

2592

Why is ph increases suddenly after the equivalence point?

1034

Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2727

we can use expired sample for validation and analyst qualification?

812

why use of sulfuric acid in roi test in pharmaceutical industry

2488

how to develop the icp ms method? Application of icp ms?

812

What is the role of a catalyst? : Polymer Chemistry

1019

How is temporary hardness be removed?

1071

why require to do water content for drug product?

829

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