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Chemistry Interview Questions
Questions Answers Views Company eMail

Why we are use glass viscometer, and what is calculation manual calculation formula as per USP. How many types of viscometre in glass type viscometer.

Cipla,

2345

full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ?

Orchid,

10 38801

can you pls provide chemistry previous papers for the post of trainee chemist in ap genco

2684

why KBr is used in FTIR SPECTROSCOPY and why is it necessary to triturate KBr during FTIR analysis?

Hikal, Lupin, Wockhardt,

25 123931

what is stability study ? why it is needed and how itis done

Dr Reddys, RB,

2 29094

how to prepare esters to aldehydes?

Biocon,

7 15033

What is hydrogenation reaction .What pressure should we use generally in hydrogenation reaction using auto clave?

Sun Pharma,

4 10187

what is the chemical composition of aluminium?

1 4511

why water, methanol, ethanol ets solvents are used in UV SPECTRIPHOTOMETER for blank reading ?

7 28787

why the same column give different retention time in hplc?

7 16998

If solvent change in cystallisation it was major change or minor. pls give justification

3 5765

How will decide to use HPLC OR GC for developing method for unkown compund

5 16608

What is the major difference b/w Drift and Noise

Aurobindo, Dr Reddys, Reddy Labs,

4 39656

what king of work is done in Regulatory Affairs in Pharma industry ?

Quintiles,

3 14945

can some other acids like nitric acid or HCl can be used in the calibration of UV.Vis. spectrophotometer????

Cipla,

2 10086


Un-Answered Questions { Chemistry }

What is equivalent conductivity?

1222


What can be the supporter of combustion except oxygen.

2815


what are the checklist need to maintain in API manufacturing area as per USP requirements.......?

2859


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

585


Which Formula Forms A Link Between The Thermodynamics And Electro Chemistry?

1140


if you have given one product then how you determine the impurity in that?

739


if you given one product then which tests you will perform?

708


Mention a few important criteria for satisfactory colorimetric analysis.

1538


How you develop a method in HPLC?

2616


what happens to the unit particles of a solute when it dissolves on a liquid?

2191


if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

978


why is acetic acid less conductive than hcl?

1162


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

2031


Which of the above conductivity measured during conductometric titration?

1070


In the calculation of calorific value of any fuel why the latent heat of vap. of water is taken as 587 kj/mol whereas actually it is 540kj/mol?

2336