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Chemistry Interview Questions
Questions Answers Views Company eMail

Why sodium hydroxide used for maintain pH of phosphate buffer

Medicamen Biotech,

2333

What is the deference between Residual solvents and OVI

RA Chem Pharma,

1 4044

What is the diference between residual solvents and organic volatile matter

RA Chem Pharma,

1964

WHY given much noise PDA dector then VWD Dector

2051

why we shrink our body during cold

IPCA,

1723

How to decide the standard concentration for related substances hplc method

1 4408

Why we have to use KBr pellet technology ?

1 3255

Why dissolution test performed on six jar?

Mylan,

1 4107

How to determine retention time in Chromatography

Mylan,

2 6083

effect of Ph during analytical run ?

Lambda Therapeutic Research,

1 2988

USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...

Srini Pharmaceuticals,

1970

Can we consider in purity angel

Alkem Labs,

1771

can we Consider the Purity threshold and Purity angle in place of peak purity for the specificity test for method verification

Alkem Labs,

1783

is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

Aarti Drugs,

2108

I need organic mixture analysis viva questions & answers

Practical Viva Questions,

6223


Un-Answered Questions { Chemistry }

What is the Formula for coreletion coefficient in plhplc calibration

1775


Why is estimation of copper done at 620 nm wave length?

1382


How to convert -40 of into centigrade?

992


How do you explain the different solvent power of water and other organic solvent?

2658


Differentiate between modern periodic table and mendeleevs table?

1102


How would you decide dissolution medium for NCE compound of class I drug

2196


What is the main difference between ODS1 and ODS2 Hplc column.

5125


Observe the following number to four significant figures and express the result in standard exponential notation: 0.006543210?

947


What is edta?

1017


Why USP put two methods for tapped density? When I should use each one?

3084


Tell me something about Vitamin A test method by HPLC

2630


we can use expired sample for validation and analyst qualification?

752


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

962


what you do when compound having dwel wavelength?

704


What is the brigg's raucher reaction?

2289