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 calibration and validation

Cipla, Zydus Cadila,

2 4965

What is cut off value of solvent used in hplc

Pfizer,

1 6493

How will you separate isomers?

Aurobindo, Hygro Chemicals,

1 3622

How to calculate mass balance in RS after degradation

Reddy Labs,

1 5983

if out of two set of results of moisture analysis first 1 is passing, second one is failing, is it oos ? or vice a versa first 1 is failing and second one is passing. for information mean value to be reported and in mean value the substance is ppassing, is it oos or normaal mean value to be considered?

JBCPL,

1 3615

Can we interpret accuracy from linearity in method validation?

Dr Reddys, Lupin,

1 2951

What is aggregate and fragments in SEC?

2062

how pyridine can be analysed other than GC?

1 4186

What is the calibration of uv process and preparation

Aurobindo,

1942

Any one is alembic pharmaceutical ltd. On starting to job ?

Alembic,

1613

How to prepare 1000ppm methylene blue solution

2 21106

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

College School Exams Tests,

1804

What are the factors effect peak shape in HPLC ?

College School Exams Tests,

2 6403

Explain the relations between number of carbon atoms in alkanes and retention time ?

College School Exams Tests,

2074

explain 5 components of gas chromatography ?

College School Exams Tests, Nucon,

1 2496

Un-Answered Questions { Chemistry }

What is acid anhydride of h2co3?

964

What do you mean by redox reaction? : Electrochemistry Corrosion

883

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?

933

What are constituents of brass?

1180

What is importance of pH in the Heavy metal test and How it effect on the test results?

2223

what are the guidelines for analytical method validations?

1052

What is the number of protons in an atom?

996

Why sodium hydroxide used for maintain pH of phosphate buffer

2335

why we are using benzene, anyline in acetic anhdride assay titration method?

2070

how to prepare the 0.001M tio2

2330

What is the requirement for brazil in the analytical method vslidation comparr to ich?

703

why are prepare daily working standard in ft ir

2611

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?

8808

Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2780

How can we calculate offset value pH measurment

1468

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