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Chemistry Interview Questions
Questions Answers Views Company eMail

Why use the Omeprazole as a reference standard to estimate the assay of esomeprazole by HPLC method

Student,

1 3877

are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????

Beni Suef University, Graviti Pharmaceuticals, Sri Krishna Pharmaceuticals,

1 2007

Which of these bonds has the weakest bond energy? hydrogen bond electrovalent bond covalent bond metallic bond

College School Exams Tests, National Open University of Nigeria NOUN,

2 6803

In UV calibration we use Holmium perchlorate solution made in 1.4M perchloric acid The question is that 1.4 M perchloric acid we make is it in water or glacial acetic acid?

 4 11200

which effect is mainly responsible for chromatographic separation when silica is the statinary phase at TLC? thanks in advance

 1 3144

what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

 1518

what is accuracy formula with examples?

 1845

why in GC calibration of linearity regression coefficient should not be less than 0.999

Acacia, Jubilant,

1 5157

why don't we call POH meter? As we all as PH meter

Aurobindo,

4 7667

Why we are having specification 100% above in case of assay as there is only 100% of compound?

MSN Pharma, Nectar Lifesciences,

2 4981

why we are taking 89ml concentrated HCL for preparing 1N HCL

 3 8456

Calculate the water content in Di Sodium Tartrate (DST) based on molecular weight?

 3 9144

What are the terms used during Melting Range Analysis ?

 2 3531

As per USP u/vacuum means (how much vacuum should be applied)?

Mylan,

1 5105

what is difference between zero air gas and o2 gas

IPCA, Vasudha Pharma,

1 9122

Un-Answered Questions { Chemistry }

How can we find that which type hybridyzation in perticular compound like in CH4(hy is sp3)?

677

What is the reaction that occurs during the titration?

666

what type of question will ask in the interview of lab chemist.

2885

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

3988

What is the diference between residual solvents and organic volatile matter

1486




In what ways can Protactinium isotopes be used to study fundamental particle interactions and properties?

139

What happens when the excess of stannous chloride is not removed

684

when are the result of sbi clerical come

1806

What is the role of stannous chloride?

935

write short note on steroids,terpenes,prostagladins,and phospholipids.

5605

how we can identify the impurity is coming below loq at transfering site?

382

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

1181

Does ethylene polymerize under mild conditions in the absence of a catalyst? : Polymer Chemistry

786

Mention the formula to calculate ph of a solution?

799

Define a triglyceride?

569

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