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 is the diffrence between absorbance and absorption in the beer,s lamber formula ?

2 11215

one gram of which below elements has the most atoms in its? a) H b) D C)T D) He

4 7326

0.1 atom gram of the unknown element( X)reacts with 2.4 gram of O2 to produce the oxid product . can you tell us, what is the oxid formula ? a) XO b)X2O3 c)XO2 D) X2O4

Ajanta,

1 4128

what is meant if aluminium sulfate contains 30% basicity?

2169

why PH scale range is 14? why it is not less or not greater than 14? solution of HCl or hydrogen containing liquid has a PH. but if the solution is KMnO4 here not hydrogen power does it PH? explain plz....

4 25288

why in atomic mass electron is not include while proton and neutron include? although electron is a part of atom.

2 5810

To make phosphorus tetraoxide from phosphorus why pure oxygen isn't taken and why mixture of oxygen and nitrogen is taken?

2559

Why we use Uracil for HPLC calibration in Detector wave ength accuracy test?

5 26431

k.f principle in finding out moisture content

1 13395

why we are carrying standardization of karl fisher auto titrator with water and disodium tartarate.

1 5599

What is difference btw UV detector & RID detector

4 19337

What's the importance of these procedures?

1 5080

How precise should be the linearity in HPLC method validation?

Glenmark,

3 11841

what should be the precision during technology transfer?

Glenmark,

3 9389

why we use vanillin in melting range calibration

3 14805

Un-Answered Questions { Chemistry }

Explain what is the dipole moment of chlorooctane?

1237

What is intact assay method development.....?

2674

pls send me ongc privious entarnace exam papers

2285

if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

686

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

1184

For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1915

What is the role of mercuric sulphate?

1088

How we choose the mobile phase for method development.?

1221

Define Vulcanization?

1177

What are the uses of glacial acetic acid?

1121

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

2673

If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

2311

What is the difference between purge septum flow and column flow in gas chromatography?

2590

How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2551

Explain the dipole moment direction for methanol?

1128

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