1. Categories >> Sciences >> Chemistry
  2. Suggest New Category


Chemistry Interview Questions
Questions Answers Views Company eMail

what are the primary standards of redox titrations?Name any two.

Laurus,

2 8234

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

Laurus,

1780

mode of absorption in alimentary canal?

Sun Pharma,

1923

why we calibrate ph meter and balance daily.....but hplc and uv requires quaterly?

Apotex, UPL,

5 19372

why we are use metthanol variously in kfr?why don't use other solutions?

4 11321

when we use capillary and packed columns in gc

Rakshit Drugs,

4 9102

what is the difference between IR and FTIR instrument analysis

 2 11524

how can give the expiry period and restadardisation of volumetric solution

Meenaxy Pharma, SRF,

2056

What are the different types of columns used in HPLC

Wockhardt,

3 11581

In HPLC when we use Isocratic method, Gradient method in hplc?

Pharmaceutical,

8 19915

Any molecule is filing for ANDA purpose, what are the dissolution requirements / specifications needed ?

IPCA,

1 5409

What is Endcapped Hplc column

 2 8691

Why we more noise in PDA detector compared to UV detector?

Aurobindo,

1 10681

if the purity is 99.9%,is need to do assay?

Reddy Labs,

3 13940

How to do acidity alkanity test ofsodium chloride

1 3719

Un-Answered Questions { Chemistry }

could negative ions be produced by bombardment process in mass spectrometry?

1298

Why is the color of the indicator drop remains the same at the end point?

764

Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2113

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

1711

For water content determination, if the material is insoluble in methnaol and ethylene glycol mono methyl ether, what other diluent can we use.

1472




if identification threshold crosses the limits then what next step?

339

If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

362

What is the principle of Particle size analysis and zeta potential

2041

Which one of the following is not aromatic?

964

WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

1621

What is the composition of ferroin?

644

what are stereomers? how are they classified?

2932

How to fix the sample conc. in Related substances test by HPLC?

615

Why Ethanol is Used for Standardization of GC Head space?

3724

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

324

For More Un-Answered { Chemistry } Questions Click Here