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Chemistry Interview Questions
Questions Answers Views Company eMail

what is the effect of injection volume calculate flow rate in perkin elmer headspace? (ccm parameter in HS)

1 3034

How to interlude aldehyde group in aromatic compound

Aurobindo,

2 4041

how to prepare 10%sulphuric acid from 98% h2so4?

Sterile India,

2 5453

How can we calculates the solubility of the drug in different medias by injecting in to hplc????(solubility studies)

Super Pharmaceuticals,

2 4817

What is the use of Holmium (III) Oxide???

Finar Chemicals,

1 5323

India is. Under which zone as per QF1.?

Acebright, Aurobindo, Gland Pharma,

4 16362

how to calculate the Step and ripple accuracy for pump gradient test for UPLC?

Wockhardt,

1 10147

why salicylic acid not use for dissolution.

Cipla, Indo Baijin Chemicals,

2 5783

Which water can use Hplc analysis

BioGenomics, Dr Reddys, Reddy Labs,

9 13910

Why there is no bond with 100% ionic character...??

1778

if you have given a blank water how you analyse by general analytical techniques?

1997

what is the analytical procedure for COD and BoD

Dai-Ichi,

1 4883

Why pH lies between 0 to 14 only

PI Industries, Unimark Remedies,

4 11550

chlorination of methane is possible and a mixture of products are obtained. Is flourination and Bromination of methane is possible?

Natco,

1996

Although bucky ball is an allotropic form of carbon but it is included in organic chemistry?

2 7866


Un-Answered Questions { Chemistry }

before starting analytical method valodation what you checking? and how giving preference to start validation?

765


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2539


If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?

753


What is the use of tlc and hplc? And when and where use?

1129


What is density of a liquid?

1080


What is the monomer of polyethene?

1128


IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

2425


Why perchloric acid used for potentiometric titration

2652


what is mean by dissolution hydrodynamics?

795


As per ICH related substances stability trend limit from initial to shelf life

3213


Describe the historical significance of Protactinium's discovery and its naming.

605


Name the element does the symbol au stand for?

983


explain sour gas?

1017


Is napthalene aromatic?

1284


is is advisable to give a Pewter finish n Stainless Steel ? State the Advantages & disadvantages.

2836