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 requirement to give RFlow when using RID detector?

3018

What is unsaponifiable matters?

1 4984

what happen when aminoacids react with alcohol

GVK, Reddy Labs,

1 6330

Is sonication essential in solubility testing of a drug substance?

Aurobindo,

6 16406

what is different between volumetric solution and general solution

1 18760

what is primary solution and secondary solution

2 8293

what is RI detector Cut-off Value

Mylan,

1 9887

In Related Substances Test how we can reside the limit of impurity ?

MSN Pharma,

2 11279

When i inject amines and acid on HPLC then which peak will elut first?

Sun Pharma,

4 13356

In pharmacopeal solibility parameter of a material, is et essential to test all paramete? If 70-75% parameter passes can we assess that the material is satisfactory or not?

Aurobindo,

1 5317

Why triethylamine and o-phosphoric acid used while setting pH of mobile phase during HPLC Analysis?

Hapten Healthcare, Pharmaceutical,

6 33567

why RID detector is used for selective materials like Mannitol, Hydroxyethyl Starch and Sorbitol?

5 12416

what is a primary standard? what is a secondary standard solutions?

Practical Viva Questions,

1 5847

for which type of applications gas chromatography is used?

2 6658

for which type of applications gas chromatography is used?

2 6437

Un-Answered Questions { Chemistry }

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

1972

how require to select dissolution media? what is discrimination?

744

How are atoms of the isotopes different from one another? Two isotopes of carbon are carbon-12 and carbon-14.

950

What is the metal used to extract copper from the solution of copper sulphate?

1026

Practically why we get negative absorption in UV SPECTROPHOTOMETER when the time of cleaning sample analysis. is negative absorption in Uv valid or not?

2357

What is the purpose of octyl silane columns?

4246

In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

858

EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2575

How is arsenic produced?

1011

What is si unit of viscosity-coefficient?

1056

Protactinium-234 is an important tool for studying ocean circulation. How is it utilized in oceanographic research?

543

How is temporary hardness be removed?

1010

How can be set a responds factor for evaluating a unknown impurity by HPLC

2339

how do you make a amine sugar

2313

Why purity angle should be less than purity threshold in peak purity

4184

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