Chemistry Interview Questions
Questions Answers Views Company eMail

what is difference of uv and pda

Akums, MSN, MSN Pharma, Shilpa Medicare,

13 66372

how can you do the analysis of compound given to u by hplc

2 7601

What is full form of ALC?

BARC,

6 13621

What is calibration procedure of gredient HPLC pump

4 24112

How to determine water content of thioanisole? which interfere by KF titration?

1 6922

what is dissolution

DRL,

6 25679

in Einstein's mass energy relation e=mc2 for what is c used or why is light required for reactions. Because the reactions are with help of neutrons

1 3239

What is colimn selection Criteria in HPLC analysis?

4 14228

How to select buffer for HPLC mobile phase

Cadila, Cipla, Lupin,

4 21340

What is primary & Secondary Standard ? Give Example

Cipla, Lupin,

17 161374

Which buffer is used for LC/MS mobile phase & at What Conc.

3 10072

how to synthesis Zyban from a banzene

1 4047

what is silicon chip

1605

what is the formula of sugar? what is protein and its formula and its function?

2 5209

what is the difference between valency and oxidation state?

Infosys,

6 15893


Un-Answered Questions { Chemistry }

hi i am siva icompleted m,sc in organic chemistry in 2008&working as alecturer can u send me the interview qusetions with answers . i expected that i got 135 - 140 marks is there any chance to get selection my interview is on may 7th 2010

1645


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

158


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

1277


inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

281


What is the process for the removal of salts from brackish water or seawater to make it usable?

576






Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1213


Name the element which was used to make the first atomic bomb?

591


Explain what are enzymes?

613


Give an example of a polysaccharide?

639


what is mean by ambient temperature?

336


How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

268


Colorimtry

1167


In which situation we require to prepare the standard solution from sample in Related substance method?

281


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

2134


why does used dry caffien in HPLC calibration?

1557