Chemistry Interview Questions
Questions Answers Views Company eMail

Difference between calibration and validation

Cipla, Zydus Cadila,

2 4048

What is cut off value of solvent used in hplc

Pfizer,

1 5546

How will you separate isomers?

Aurobindo, Hygro Chemicals,

1 2943

How to calculate mass balance in RS after degradation

Reddy Labs,

1 5066

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 2914

Can we interpret accuracy from linearity in method validation?

Dr Reddys, Lupin,

1 2102

What is aggregate and fragments in SEC?

1566

how pyridine can be analysed other than GC?

1 3314

What is the calibration of uv process and preparation

Aurobindo,

1488

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

Alembic,

1220

How to prepare 1000ppm methylene blue solution

2 18954

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

College School Exams Tests,

1367

What are the factors effect peak shape in HPLC ?

College School Exams Tests,

2 4966

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

College School Exams Tests,

1618

explain 5 components of gas chromatography ?

College School Exams Tests, Nucon,

1 1825


Un-Answered Questions { Chemistry }

what type of questions asked on analytical balance and also give answers................all pharma companies?

11696


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2130


Why is starch indicator added towards the end point?

579


composition of german silver

1871


How to convert -40 of into centigrade?

539






Explain the difference between hcl acid and hcl gas?

589


What is the resulting solution when benzene and toluene are mixed ?

572


What are the applications of electrochemical cell? : Electrochemistry Corrosion

584


What is the reaction that occurs between iodine and sodium thiosulphate?

528


Write the mathematical form of nernst equation and give one application? : Electrochemistry Corrosion

544


For water content determination, if the material is insoluble in methnaol and ethylene glycol mono methyl ether, what other diluent can we use.

1449


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

2347


what is biorelivent dissolution media?

292


Can a Nascent Hydrogen be used for fuel cell without damaging the equipment and if so how good would it be compared to other type of hydrogen.

1723


why salisylic acid not using now days for disdolution calibration?

289