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Chemistry Interview Questions
Questions Answers Views Company eMail

Which is the highly polar and highly non polar column in HPLC?

2309

What is the difference between qualitative and quantitative analysis (hplc)

1 4580

What is the composition of Barford Reagent?

TPS,

2129

what is the difference between potentiometric titration and karl fischer titration?

3193

How NMR spectra can be calibrated in presence or absence of TMS?

1 2875

What is Michael addition?

Gharda Chemicals Limited,

1 3085

How will you determine OH of organic compound ?

Gharda Chemicals Limited,

1 2462

why is mgcl used in edta titration

1630

What is Band broading effect explain

Dr Reddys,

1880

Active Ingredients in septilin ??

1697

we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

Cipla,

1872

tell me about aliphatic acid estimation by hplc which columns can we use

Dr Reddys,

1 3578

does water content by KF will calculate only external moisture absorbed or the ligand ? (for ex copper sulphate pentahydrate)

NA,

1913

Why we perform the ir analysis?

Sequent,

3 5013

difference between calibration and validation

Mylan,

2 5076


Un-Answered Questions { Chemistry }

what are the role of chemistry education in sustainable development

2592


For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

4073


What is related substance by HPLC impurity limits as per USP?

1107


how decide the clining method and cleaning method validation require for this perticular products?

755


on saturation solubility study data how we can find out the bcs class of drug?

899


Assuming that the density of the solution is the same as the density of water (density of water=1.000g/ml), calculate the mass of water for both reactions using: mass of water = Volume of water Density of water. Mass of water =

2537


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

1743


What is similarity factor and its use in api strength?

1299


Arrange by acidic values : phenol, nitrotolouene and o-cresol?

1083


if you have given a blank water how you analyse by general analytical techniques?

2032


How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2546


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

1100


What is kentchin?

1040


Protactinium is part of the actinide series. Discuss the significance of this series and its implications for nuclear chemistry.

715


Explain what is the net charge of a non-ionized atom?

1049