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 hplc calibration we are using 0.05% acetone why we are using that one and what happen when its conc increases or decreases

Aurobindo, Cadila, Martin,

4 32329

loss on drying we applied vaccum for some compounds and some compounds are at 105c why

3 12684

why we are calibrating autopolarimeter with quartz control plates

1 5899

what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

GHI, Siemens,

10073

why we use TLC?

8 22417

why disodium tartarate is used for autotitrator calibration

Cipla, Micro Labs,

2 13532

perchloric acid&glacal acetic acid both are acids but reaction is complete in volumetric titrations.how?

1 11388

what is the cleaning validation?

BioPlus,

1 9768

acetic acid is weak acid & perchloric acid is strong acid.but how perchloric acid is soluble in acetic acid

AVT, Hetero,

3 12105

sir, what does happen ............? naphthal+benzene(or)toluee........> ?

2239

if tis below reaction does happaen means...,what is the end product.......? naphthal + toluene(or)benzene............> ?

Hetero,

1 5203

What is polymorphism?which type of compounds exhibits polymorphism?

Torrent Pharma,

2 9770

what is the basic principle of conductivity meter

Hetero,

4 29739

Column selection in HPLC method development?

1 13294

which of the following is the best conductor of electricity?

4 6377

Un-Answered Questions { Chemistry }

How to set analyticl specification for combination products?

804

what are the standard methods for HPLC?

2836

Explain acid gas?

1103

what things are suitable for investigatory project?

2790

about method developement in hplc

1768

How does Protactinium contribute to our understanding of nuclear fission and fusion reactions, and what research has been conducted in this area?

662

how to prepare the 0.001M tio2

2441

what is stero electronic factor.2 what is steric control factor and what is product control factor

2177

for which product require to do content uniformity? what is limit of cu?

885

Identify problem faced when mass spectroscopy is used with HPLC system ?

1936

why do antimony and bismuth have the same electron affinities?

2529

what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

2082

When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?

1086

what is the disso medium for tropsiun chloride

2316

Explain what is the dipole moment of chlorooctane?

1321

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