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Chemistry Interview Questions
Questions Answers Views Company eMail

Difference between related substances & impurities

Biocon,

2 18247

Polarized meter calibration, 1. Method name? 2. Which solution use? 3.why?

1 3724

Basic principle of ESI?

Cipla, GVK,

2103

What is the meaning of Base deactivated vials

Sun Pharma,

1 3531

What is definition of RRT and what is the difference between RT and RRT in HPLC

2 10358

What is the definition of RRF

2 6723

In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?

Gland Pharma,

1 3873

why we use 0.1% acetone in gradient calibration of HPLC?

Cipla, Dr Reddys, FDC,

3 13731

What is difference between assay by Hplc and uv

Aizant, Fredun Pharmaceuticals, Hetero, Marksans Pharma,

2 10409

why we use actone for Gpv test in hplc calibration

1 10168

How to standardization of 1N H2SO4?

GNFC, Macleods,

1 7894

Why ammonia is used as buffer solution in estimation of copper by EDTA method

1804

how does h2so4 prevent oxidation of mohr salt before it is titrated?

1 3133

what are the reasons to get the low transmittansE in FTIR

Dr Reddys,

2 4197

In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.

1 2759


Un-Answered Questions { Chemistry }

pls send me the solved paper of health & malaria inspector to santoshmaurya.087@radiffmail.com

2852


What are the other ways in which chemists can manipulate the properties of polymers? : Polymer Chemistry

1149


why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

2210


what is meaning of wet analysis.

5699


In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

2181


is is advisable to give a Pewter finish n Stainless Steel ? State the Advantages & disadvantages.

2822


what is third integration

1931


why require to do water content for drug product?

786


Active Ingredients in septilin ??

1646


Protactinium has a relatively short half-life for some of its isotopes. How does this characteristic impact its practical uses and research?

516


we shall use Dichloromethane in last stage of API.

3035


Write the each half cell reaction and also net cell reaction for a cell

2865


Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2782


if tech transfer fails whay require to do?

783


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

3631