Chemistry Interview Questions
Questions Answers Views Company eMail

How we develop a method by HPLC for unknown compound,if we got three peaks with same response then how we can find out which one is our desired compound's peak without taking help of LC MS.

Apotex, Kemwell,

4 13414

In case of dissolution test, if there is variation within 6 individual units however the batch is complying as per S1 criteria, is it necessary to do investigation for the same? What should be the criteria for such variation?

2 4396

What is the difference between bulk property detectors and Solute property detectors vivimed labs limited

3 15561

IF THE COMPOUND PKA IS 5.3 WHY WE ARE ADJUSTING PH+/-2 OF THE COMPOUNDS PKA. WHAT IS THE CONDITION

Dr Reddys, Reddy Labs,

2 9434

What are the limits for uniformity dosage content for tablets and capsules

Micro Labs,

5 21176

WHAT IS THE USAGE OF REFRACTIVE INDEX IN PHARME FIELD

3 8650

IN DISSOLUTION TEST S1AND S2 AND S3 CONDITIONS ALL ARE FAILED THEN WHAT IS THE DESSICION U CAN TAKE

Cipla,

12 25085

Why potassium hydrogen pthalate is used for perchloric acid And naoh. Why it is used for both acid and base

Vijayasri Chemicals,

6 29104

what are the normalisation, internal standard and external standerd methods in HPLC.

GVK,

2 13541

what is the experiment to find out the diffrence between energies of various conformal of cyclohexane?

1 3307

is ther any guidline is available for limt of peak fronting.and what is the limt of peak fronting.

2 10979

how can you define the PH

Dr Reddys, Matrix, Piramal Healthcare, Reddy Labs, Sun Pharma,

17 18272

how would you determine the acceptance criteria for cleaning validationof product A for product B?

Cipla, Cypher Solutions, Torrent Power,

1 6864

what is inorganic chemistry?

Indian Navy, SoftSol,

4 6257

How can we konw that the HPLC column is endcapped? Is it possible to identify visually without COA?

JBCPL,

2 9386


Un-Answered Questions { Chemistry }

How does Protactinium contribute to our understanding of Earth's history and the behavior of elements in natural systems?

154


Why are the titration involving edta carried out slowly towards the end point?

749


Describe the role of Protactinium in neutron sources and its significance for research in nuclear physics.

127


Why is ammonia added? Why is that same amount of ammonia added?

579


What is the limitation of cod?

618






process of Diclofenac sodium,IP.

1681


If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

1759


In pickling process of titatium with HCL . how to know if the acid is not effective after pickling several batch. is there any test to know it. (not practically)

1135


Explain the function of a monosaccharide?

611


Define Vulcanization?

709


Why be is not soluble in liquid ammonia?

604


In what ways can Protactinium isotopes be used to study fundamental particle interactions and properties?

148


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

2428


Name the molecule which is characteristically prevalent in sour milk and tired muscles?

566


What is hybridyzation? How can we find that which type hybridyzation in perticular compound like in CH4(hy is sp3)?

698