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Chemistry Interview Questions
Questions Answers Views Company eMail

If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?

 310

How to set analytical specification for combination products?

 324

what is mean by covalidation

 315

What is the requirement for brazil in the analytical method vslidation comparr to ich?

 270

Why only 1.2 million lux hours require in photostability study?

 460

what is diffrence between specificity and selecivity?

 307

analytical method validation require to with respect to release specification or shelf life specification?

 280

In which situation we require to analytical method validation of excipient?

 292

in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?

 265

how require to interprit the method precision data of hptlc?

 295

in api coa contains only process impurities and in product coa contains degradation impurities?

 318

Which are the diffrent grades of api in pharma?

 311

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

 287

Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

 278

how to decide for one product require water content or LOD?

 327

Un-Answered Questions { Chemistry }

What are hard waters?

610

How does Protactinium contribute to our understanding of nuclear fission and fusion reactions, and what research has been conducted in this area?

122

What should be the level/ Percentage of Arsenic in Arsenic free zinc.

1760

What is the organic structure of cetearyl alcohol?

628

Atactic polypropylene is always produced with the [cp2zr(r)]+ catalyst. Explain this on the basis of molecular-level interactions. : Polymer Chemistry

574




What are filters? Why are they used?

594

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

577

How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

2715

Why a1% value is used for some product ? What is the criteria for selection a1% value ?

1865

In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

457

Define ph?

636

which are the sizes of capsules?

404

Protactinium has potential applications in nuclear reactors. Could you elaborate on its role in enhancing reactor efficiency or safety?

145

Explain extraction of ephedrine from a mineral block?

584

Define an origin of electrode potential? : Electrochemistry Corrosion

538

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