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 4903

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

Beni Suef University, Graviti Pharmaceuticals, Sri Krishna Pharmaceuticals,

1 2785

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 8069

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 12960

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

1 3965

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

2082

what is accuracy formula with examples?

2460

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

Acacia, Jubilant,

1 6292

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

Aurobindo,

4 9432

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

MSN Pharma, Nectar Lifesciences,

2 6169

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

3 9960

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

3 11107

What are the terms used during Melting Range Analysis ?

2 4606

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

Mylan,

1 6212

what is difference between zero air gas and o2 gas

IPCA, Vasudha Pharma,

1 10175

Un-Answered Questions { Chemistry }

FDA MHRA

2656

What is the accepted microbial load in APIs as per USP.........?

2566

describe the lewis dot structure of Mg2+?

12061

How is hardness of water caused?

1180

How Many grams of solid iodine are produced by the decomposition of 25.4g of hydrogen iodine gas?

3084

why require the ph, buffer during hplc mobile phase?

927

Protactinium has potential applications in nuclear reactors. Could you elaborate on its role in enhancing reactor efficiency or safety?

714

4.0 liters of oxygen are mixed with 8.0 liters of nitrogen. Identify the solute and solvent in this mixture:

1107

when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.

2105

Actinium is a radioactive element. How is its radioactivity utilized in various practical applications or fields?

695

What is the requirement for brazil in the analytical method vslidation comparr to ich?

855

why digestion require in icpms?

830

How does Actinium interact with other elements, and what are some notable chemical reactions or compounds involving Actinium?

677

hi i got i 20 from sacred heart university u.s.a.i got good tofel score and my gre is score is very poor.my university requirement is only tofel.i completed my b.pharmacy in 2009 so i got 1 year gap is their chances to reject visa?what i have to do i was very tensed.how to sought out my problem

2490

What is the difference between a heterogeneous and a homogeneous catalyst? What are some of the advantages of homogeneous catalysts? : Polymer Chemistry

1073

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