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 uv detector nd RI DETECTOR? wt s the difference between OVI Solvents nd residual solvents incase of GAS CHROMATOGRAPHY? nd wt s its detection limit?

3 15989

on what basis SOP's can be changed? IF mobile phase ratio is 70:30 to how much % can we change the ratio in HPLC process

Cipla, Ranbaxy,

7 17554

what is HPLC

Avra,

8 13180

Why caffeine as a reference standard used for calibration of HPLC?

Gangwal Chemicals, Orchid,

11 57874

why all the concentration of chemical species are measured using water as solvent (for examole 1N NaOH means 40 g of NaOH in one litre of water)eventhough there are so many solvents available?

1 4568

What is the composition of K.F

IPQA,

6 42443

What should be the precision for HPLC during technology transfer?

3 9832

what is ph of benzene

Ranbaxy,

7 15806

how do start hplc method development? how much sample required for developing the method development?

BMS, Cipla, Indoco Remedies, Sun Pharma,

3 52799

Wt s the use of linearity in HPLC method validation

4 16541

which pharmacopeoia mentions that caffiene is used as a standard for HPLC calibration? which other standardscan be used for the same?

Hetero, Mylan,

1 9187

Why will a solution of aspirin without acid or basic hydrolysis give yellow colour with a solution of Ferric chloride?

1 5780

Why do we use 0.005M h2so4 solution for preparation of k2cr2o7 solution for UV calibration?

Jubilant, Medreich, Mylan,

3 25317

hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.i want sample RESUME,OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com

2335

hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.but our company didn't give d OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents along with sample RESUME,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com

2911

Un-Answered Questions { Chemistry }

Differentiate between modern periodic table and mendeleevs table?

1167

What is the atomic number?

1014

what is mean by dissolution hydrodynamics?

826

What is similarity factor and its use in api strength?

1299

what is diffrence between specificity and selecivity?

779

Polymer chain growth can be terminated by b-hydride elimination or by reaction with h2. What is one advantage of the h2 reaction? : Polymer Chemistry

1173

how to calibrate hplc & gc

4510

How are ph and pka related?

1107

Explain substituted hydrocarbon?

1059

How can I develope method of dissolution by HPLC OR UV

2408

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

2256

Write the each half cell reaction and also net cell reaction for a cell

2920

What are hard waters?

1022

what is mean by nitrosamine impurities?

1066

Why we check moisture,ash & AIA in product

1881

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