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 4813

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

Beni Suef University, Graviti Pharmaceuticals, Sri Krishna Pharmaceuticals,

1 2712

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 7976

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 12794

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

1 3904

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

2033

what is accuracy formula with examples?

2415

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

Acacia, Jubilant,

1 6204

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

Aurobindo,

4 9292

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

MSN Pharma, Nectar Lifesciences,

2 6049

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

3 9826

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

3 10960

What are the terms used during Melting Range Analysis ?

2 4532

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

Mylan,

1 6121

what is difference between zero air gas and o2 gas

IPCA, Vasudha Pharma,

1 10102

Un-Answered Questions { Chemistry }

Colorimtry

1669

Protactinium-234 is an important tool for studying ocean circulation. How is it utilized in oceanographic research?

608

What is the prime constituents of cement?

1269

How we choose the mobile phase for method development.?

1221

for which product require to do content uniformity? what is limit of cu?

821

Identify problem faced when mass spectroscopy is used with HPLC system ?

1888

Protactinium-233 is used in the thorium fuel cycle. Explain how this cycle operates and its potential benefits in nuclear energy production.

683

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

2919

Name the two most common end-products of alcoholic fermentation?

1016

What is the chemical formula of alum?

1163

why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

9808

What is viod volume and peak purity in HPLC?

2885

Why perchloric acid used for potentiometric titration

2690

Active Ingredients in septilin ??

1707

How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

2398

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