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 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 38804

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 123947

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

Dr Reddys, RB,

2 29095

how to prepare esters to aldehydes?

Biocon,

7 15037

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

Sun Pharma,

4 10190

what is the chemical composition of aluminium?

1 4512

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

7 28793

why the same column give different retention time in hplc?

7 17001

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

3 5766

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

5 16613

What is the major difference b/w Drift and Noise

Aurobindo, Dr Reddys, Reddy Labs,

4 39660

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

Quintiles,

3 14946

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 }

A polymer's structure influences its physical properties. Describe two structural variations that are possible for polypropylene but not for polyethylene. : Polymer Chemistry

1103

what is procedure of actual procedure for registration of drug?

2012

HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

2248

Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?

6249

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2669

What is the principle involved in conductometric titration?

1173

Why use only methanol,used determinationof moisture content not use other solvents

1408

Colorimtry

1660

What can be the supporter of combustion except oxygen.

2815

Arrange the following in their increasing polarity order Carboxylic acid, hydroxyl, phenyl, amino and aldehyde

1743

How is temporary hardness be removed?

1071

How can we calculate offset value pH measurment

1510

discuss the diffrent types of chromatography and their uses. In not more than 10 papers oc not less than 8 papers

2112

What are the advantages of potentiometric titration?

1087

Explain how do you extract ephedrine from a mineral block?

1005

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