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 4738

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

Beni Suef University, Graviti Pharmaceuticals, Sri Krishna Pharmaceuticals,

1 2653

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 7870

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 12669

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

1 3834

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

1995

what is accuracy formula with examples?

2347

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

Acacia, Jubilant,

1 6131

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

Aurobindo,

4 9159

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

MSN Pharma, Nectar Lifesciences,

2 5967

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

3 9700

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

3 10787

What are the terms used during Melting Range Analysis ?

2 4449

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

Mylan,

1 6037

what is difference between zero air gas and o2 gas

IPCA, Vasudha Pharma,

1 10015

Un-Answered Questions { Chemistry }

Actinium is part of the actinide series. Could you explain the significance of this series and its placement in the periodic table?

580

Actinium is often considered a rare and scarce element. How does its rarity impact its industrial uses and research purposes?

517

Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2576

What is ciprofloxacin hcl?

1009

AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

2030

What do you mean by redox reaction? : Electrochemistry Corrosion

900

How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2558

WHY given much noise PDA dector then VWD Dector

2063

why require to add enzymes in capsules dissolution only? is it require to tablet also?

659

if peak get problamatic then what require to do?

765

how much time require for day to prepare the ongc exam for evarage student?

2999

What is dextro-rotatory and levo-rotatory?

1151

Explain the use of glacial acetic acid?

1064

what is silicon chip

2054

describe the lewis dot structure of Mg2+?

11921

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