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

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

Student,

1 4805

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

Beni Suef University, Graviti Pharmaceuticals, Sri Krishna Pharmaceuticals,

1 2709

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 7964

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 12784

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

1 3898

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

2024

what is accuracy formula with examples?

2402

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

Acacia, Jubilant,

1 6194

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

Aurobindo,

4 9278

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

MSN Pharma, Nectar Lifesciences,

2 6038

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

3 9816

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

3 10939

What are the terms used during Melting Range Analysis ?

2 4512

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

Mylan,

1 6115

what is difference between zero air gas and o2 gas

IPCA, Vasudha Pharma,

1 10088

Un-Answered Questions { Chemistry }

Why is disodium salt of edta preferred to edta?

1540

why xterra column require to use at higher ph?

919

Explain how buffer works?

1115

How you develop a method in HPLC?

2616

Define electro plating and electroless plating? : Electrochemistry Corrosion

1055

why we are using hexane in calibration of number of drop per mL

1737

What is mineral water?

1078

CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1207

Define an electrochemical corrosion. What are the types of electrochemical corrosion? : Electrochemistry Corrosion

980

What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

825

WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2607

how can karl fischer's titration be used to estimate alcohols??????

2732

Explain the process of protactinium-uranium fractionation and its implications for understanding geological and geochemical processes.

704

what is meaning of wet analysis.

5746

How to convert -40 of into centigrade?

1052

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