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

Difference between c18

Apothecon, Dr Reddys, Intas, IPQA, SUN, Torrent Pharma,

6 53213

principle of UV , PDA , RI detector in HPLC

Dr Reddys,

8820

mahagenco syllabus for the post of chemist

MahaGenco, Unimarck Pharma,

6519

What is post run in hplc?

Cipla,

1 17071

Tell me something about Vitamin A test method by HPLC

Lupin,

2728

what is induction on electrical insulators

2365

How to choose Normal phase or Reverse Phase HPLC method Conditions for given sample?

PharmaZell,

3 14984

why the most API molecule are in the hydrochloride form?

1 9832

IF HPLC CALIBRATION FAILED THEN WHAT YOU DO

6 37027

Optical Rotation*0.9477*100*200] Assay Of dextrose= ________________________________ 99.8* 200 why Factor=0.9477

Claris Lifesciences, Inven Pharmaceuticals, Levo,

1 15720

what is column chromotography?

ONGC,

2 7850

How you will select the runtime in HPLC for a drug in method development.

Aurobindo, GVK, Lesanto Laboratories,

6 22390

If compound Pka is 5 then which buffer you will select ?

Avra, GVK,

5 16999

what is the difference between BDS and ODS Columens and both are same or not

Intas, IPQA, Micro Labs, Vasava Engineering Private Limited,

2 73830

difference between HPLC & LC-MS

Lambda,

9 47224

Un-Answered Questions { Chemistry }

Explain the function of mitochondria?

1130

From where require to take the RLD sample?

807

Explain extraction of ephedrine from a mineral block?

1111

what are risk assement in the analytical qbd?

809

Why irmoisture balance is used for corrugated box moisture testing

2453

What is phase transfer catalyst?

1162

why is mgcl used in edta titration

1680

Basic principle of ESI?

2214

what are the checklist need to maintain in API manufacturing area as per USP requirements.......?

2926

what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

4540

if peak get problamatic then what require to do?

864

Why we have to add 200mg Na2CO3 in preparation of 0.1N sodium thiosulfate solution?

1634

If vendor having more imp than monograph then how to proceed? and how to set spec?

1011

What are the differences between chemical and electrochemical corrosion? : Electrochemistry Corrosion

1143

If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

1046

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