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 principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

9247

What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

8862

What is the difference between Spectroscopy and spectrophotometry,What are the applications?

Caplin Point, Cipla,

4 11887

What is difference b/t uv detector and rid

5 11302

i set electrode to 7 buffer than i used it to check 4 buffer and 10 buffer if the results are not as expected than is it better to set the buffer again to 4 buffer or is there any other method available please let me know ...

Glochem,

2 7138

can you separate isomers by using column chromatography?

2 7962

How much is the standard area for glc analysis

2285

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

DRL,

2669

what type of compounds do we see lod @ wat type compounds do we see m.c

Orchid,

3 9497

How can the GC or HPLC method is selected to determine the impurity profile in drug product?

Ajanta,

1 7596

How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

Cipla, Rampex Labs,

4266

What the difference in loss on drying and residue on ignition

2 35157

Why irmoisture balance is used for corrugated box moisture testing

Leiutis, Lupin,

2404

why we are used 4,7,9,2 buffers for the ph calibration

Aurobindo, Enaltec Labs,

4 19616

In case of HPLC coloums what is the difference Between C8 & C18 coloums & how can we select difference type of coloums like Inertial ODS , Hypersil BDS , ODS etc.?

MSN Pharma,

4 33420

Un-Answered Questions { Chemistry }

what is NIR wave length

1432

Protactinium has a relatively short half-life for some of its isotopes. How does this characteristic impact its practical uses and research?

576

What should be the level/ Percentage of Arsenic in Arsenic free zinc.

2233

all types of questions asked at the cipla interview

4684

Explain why acetic has less conductivity than hcl?

1038

Why is acetone used for cleaning viscometer?

1369

What is edta?

1071

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

Explain the difference between the law of multiple proportions and the law of definite proportions?

1023

pls send me ongc privious entarnace exam papers

2280

How to start the dissolution development for unknown tab?

1679

Explain why do some medications contain hcl?

1148

How tripod is used?

1158

What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1897

How would you decide dissolution medium for NCE compound of class I drug

2256

For More Un-Answered { Chemistry } Questions Click Here