Chemistry Interview Questions
Questions Answers Views Company eMail

what is lithipone?

Dr Reddys, ONGC, Reddy Labs, Lupin, Jubilant,

6 16586

what is redox potential of an organic compound?

Reddy Labs, Lupin, Glenmark, Dr Reddys,

2 14009

what is saponification of oils?

Indian Potash Limited, Cipla,

2 12868




How 'salting out' process is used in extraction?

PH.D Interview,

2 14576

What are geometrical isomerism? Explain them with an example?

PH.D Interview,

1 10769

Mention the factors affecting solubility of compounds?

PH.D Interview,

9 12293

NH2-CH2-COOH belongs to what structure?

Dr Reddys,

11 21927

what are ligases?which type of reactions they will catalyse?

1 5063

what happens when aminoacids react with alcohols?

Reddy Labs, GVK, Pharmaceutical, GVK Biosciences,

3 13319

what is the difference between coordinate covalent bond and covalent bond?

Flamingo Pharmaceuticals,

9 27414

what are the 4 classes of unsaturated fatty acids?

Snowcem Paints, College School Exams Tests,

1 3902

why the atomic weights are in fractions?

1 5421

Which is useful in the manufacture of Insectisides?

RR Enterprises,

2 4941

The Name Benzene was Proposed By?

GVK, Cipla, Torrent Pharma,

22 18193

Number of Sigma Bonds Present in Benzene are same as ..?

Cipla,

13 15768







Un-Answered Questions { Chemistry }

What is a repartition coefficient?

1148


HI, I AM SUNIL BISHNOI.I AM PREPARING FOR ISHRO ASTRONOTES EXAM.PLEASE TELL ME ALL ABOUT THIS.

1412


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

3227


How hydrate is forming along with API?

1107


what kind of question can be asked in interview for UV- VISIBLE & give me answer ?

2634






What is a proteic unit?

1526


describe the lewis dot structure of Mg2+?

10495


Qc interview questions

496


What are acounting Pi electron's?

1082


why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

481


Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?

4741


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

1959


what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

1159


composition of german silver

1188


I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

2200