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Chemistry Interview Questions
Questions Answers Views Company eMail

Why KBR is used in IR for preparation of pellete, why it shows zero dipole moment

GVK,

7 12647

what is optical active and non active give examples?

GVK,

1 4300

Whai is the QUAITY as according to pharma or cemica or agro chemica industry?

 1 2323

what is custom fields in waters system?

Akorn India, Aurobindo,

1 7693

my name is santhosh i cmpleted b.pharmacy in 2009 then i went to uk in 2010 to pg diploma business management. after i came back to india.. recently again apply to uk for pharmaceutical analysis. they refused my visa you failed to explain y u r change subject. so plz ineed answer for y change the cource

 1 2693

why kbr is used for pellet preparation in ir spectroscopy, give the reasons? why kbr shows zero dipole moment?

 6 15884

what is diffrence between Specific optical rotation, optical rotation?

 3 11711

Why only lead standard solution is uesd to perform heavy metal test.

Reddy Labs,

2 5543

Why some type of assays having limit 98% to102%? (if any compound having assay limit 100)

Asia Pharma, Reddy Labs,

3 9218

What is the lab normality??

DRL, Tagros,

3 10086

what is the d/f b/w normality and molarity and molality..?

 1 8679

What is column dead volume?

Astron Research,

4 11801

what is the conductivity of hplc grade water?

 4 15409

what is SOP?How can prepare?

Reddy Labs,

1 6572

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

Ranbaxy,

2597

Un-Answered Questions { Chemistry }

What forms the basis for colorimetric determination?

712

Give the others form of iron ore.

580

in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

340

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

6862

if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

269




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

1773

which gas is used in preaparation of bit salt

1836

Explain acid gas?

582

How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

2858

How many electrons does benzene have?

579

What is the accepted microbial load in APIs as per USP.........?

2010

what are risk assement in the analytical qbd?

277

How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

1785

If combination product how require to identify which imp is of which api?

313

why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

8894

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