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Chemistry Interview Questions
Questions Answers Views Company eMail

which element is good conductor of electricity but bad conductor of heat

L&T, UPSC,

4 11647

For Recent draft guidelines for Dissolution test apparatus calibration, why removing the salicylate tables?

Alkem Labs,

3 9135

How can v calibrate ftir ? Plz explain me

Cipla,

2 17693

what is the diff betwen calibration and system suitability?

 8 19512

Why Methanol used in KF Titration?

Glenmark, Lupin,

15 63586

Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?

Vardhman,

2 8065

what acid present in milk

17 15812

pls send me the solved paper of health & malaria inspector to santoshmaurya.087@radiffmail.com

RRB, TCS,

2445

why chiral separation?

 1 7771

what is main use of primary standards in caliration

Lee Pharma, Lupin, Nectar Lifesciences,

2 5284

what are the important specifications for a Column ?

 2 9005

why xylene use in saturated polyester resin

 1 5859

why are take potassium hydroxide molecular weight in total amine calculation

 1 3712

What is kentchin? Is it real? As much info on it as possible.

 2 5740

what is the purpose of Buffer in any titration?Ex:In determination of hardness of water we use ammonia ammoniachloride buffer in titration with EDTA.Why?

Amity, Prakriti, Sr Comunications,

13 87351

Un-Answered Questions { Chemistry }

What is control room temperature and which guide line says?

1152

how require to set assay concentration for standard and sample?

362

Name the element which has the following ground-state electron configuration: 1s22s22p6?

565

What is the diference between residual solvents and organic volatile matter

1479

What is a repartition coefficient?

1890




A polymer's structure influences its physical properties. Describe two structural variations that are possible for polypropylene but not for polyethylene. : Polymer Chemistry

606

what is the origin to prepare standard operating procedure

1780

we can use expired sample for validation and analyst qualification?

294

Protactinium-231 decays to Uranium-235. How is this decay used in radiometric dating and the determination of geological ages?

113

why lead acetate s used in the Limit test of Arsenic? what role Lead Acetate plays????

16801

how you fix the limits of impurities?

373

What is use of acetonitrile compare to methanol in RP-HPLC Method development?

1521

What is wave number?

624

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?

2201

How to fix the sample conc. in Related substances test by HPLC?

605

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