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

Why it is advised to boil water before drinking ?

1 5710

Why is the percentage of oxygen today the same as it was thousands years ago, even though the whole world inhals it?

1 5430

Why would we all suffocate, if all the green plants were killed ?

1 4913

Why are substances like caustic soda and calcium chloride called hygroscopic substances ?

2 6480

Why is sodium preserved in kerosene oil ?

3 17190

Why is a newly made quit warmer than an old one ?

1 4662

What causes smoke to curl up into the air ?

1 6005

Why does a dog hang out his tongue, when it is hot ?

2 6407

Why dies thermos flask keep a hot liquid hot and a cold liquid cold ?

College School Exams Tests,

1 5107

Why does oil thrown on rough sea make it calmer ?

1 5042

Why is heat more oppressive on a damp hot day ?

1 4335

Why is dew formed more readily on clear nights than on cloudy ones ?

1 5380

If the stopper if a bottle has stuck, sometimes it may be removed by heating the neck, why ?

1 3453

Why does the snow on the mountains not melt all at once, not changed into water very slowly?

3 9491

Why does the water in tanks and ponds not freeze in winter ?

1 4188

Un-Answered Questions { Chemistry }

What modification is required for the atomic theory in order to explain the existence of isotopes, and modern view of atomic nuclei and electrons?

2256

What are the constituents of cements?

1061

[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

791

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

1097

What are the methods used to control the corrosion? : Electrochemistry Corrosion

1019

Describe the process of Actinium extraction from its primary sources and how it's obtained for various applications.

653

write short note on stero electronic factor, steric control factor and product control factor

2052

why are measure gas flow " ml " in Gas chromatography

1661

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

1187

What is mole?

1079

What are the primary considerations in extractables and Leachables ?

2277

Define Vulcanization?

1175

How do we fix the sample concentaryion in hplc method development. What is the basis?

1209

can you pls provide chemistry previous papers for the post of trainee chemist in ap genco

2684

Explain extraction of ephedrine from a mineral block?

1056

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