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

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

GVK,

2526

why do we adjusted ph in the mobilphase

Cipla, Dr Reddys, Reddy Labs,

9 24927

how are 31P NMR resonance differentiate phosphorous and phosphoric acid

1 4445

How to develop the method when we have very low amount of impurity?

2 8210

If we have 120 minutes run time method for HPLC and you wan to decrease the Run time so what should you do??

6 13606

Wath is the differenc between two column HPLC wich have the samme support , lenth , pore size, etc.. But different name .for exemple : Spherisorb / lichrosorb

NDA,

2 7937

WHAT IS PVT TEST IN DISSOLUTION TEST , WHAT IS PVT SIGNIFICANCE AND HOW IT IS PERFORMED ?

1 7458

2263

How you will select column for HPLC development depends on nature of compound and how it will work explain in brief?

3 10832

What is the role of SO2,I2, Methanolic hydroxide and any base in Karlficher titration

Medley Pharmaceuticals,

2 9146

The boiling point of 1,3 butadiene is -4.4 DC & the boiling point of Pentane is 36.1 DC. Then how come Pentane elute before 1,3 BD in GC analysis?

1 5355

what is the relation between Total organic carbon and Chemical Oxygen demand?

2852

What is Arsenic Test?

Flamingo Pharmaceuticals,

2438

What is the difference between Optical rotation and Spcefic optical rotation

IPCA, Matrix,

2 13364

why we use sodium salicylate in uv light calibration at TLC chamber

Aurobindo, Lee Pharma,

1 8904

Un-Answered Questions { Chemistry }

Differentiate electroplating and electro less plating? : Electrochemistry Corrosion

1017

Actinium-227 can decay into Thorium-227. Explain the significance of this decay chain and its applications, particularly in nuclear physics.

610

what you do when compound having dwel wavelength?

704

Atactic polypropylene is always produced with the [cp2zr(r)]+ catalyst. Explain this on the basis of molecular-level interactions. : Polymer Chemistry

1037

The use of vermilion on rubric of the Tartar Relation is confirmed by the presence of three lines attributed to HgS. Why should this diatomic have more than one vibrational line?

2608

What are acounting Pi electron's?

2297

if identification threshold crosses the limits then what next step?

801

in which situation require to use paddle and basket?

673

The reaction of an acid with an alcohol to form an ester and water. What is the process?

969

What is mean by PDR?

861

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

2190

What is the diffrence in japan mkt requirement in analytical method validation over US?

676

What is the bluish white precipitate formed after adding ammonia solution?

1046

Define the term distribution coefficient in organic chemistry.

1073

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

4100

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