Chemistry Interview Questions
Questions Answers Views Company eMail

What is excipient in drug product?

Lupin,

1 1810

What is GF254 means in TLC plate?

Abbott,

1 2353

What is zero water in TOC Analysis?

Orchid,

1 1921

What is the name of the detector used in TOC?

Lupin,

1 1933

What is NPOC method in TOC?

Zydus Cadila,

1 1649

What is FDA form 482c?

Lupin,

1 2263

What are the class-1 residual solvents listed in ICH guidelines?

2 2750

What are the concentration limit for class-1 residual solvents in ICH ?

Lupin,

1 1828

How does HPLC Calculate Void volume?

Lupin,

1 2217

What does theoretical plates number mean?

Zydus Cadila,

1 2061

How do you increase the number of theoretical plates?

Cipla,

1 2411

Why red HgI2 added during starch preparation?

Aurobindo,

1 1795

What is the Formula for coreletion coefficient in plhplc calibration

1234

How to calculate coreletion coefficient

1130

Why do we use vaccum in Loss on drying test?

1203


Un-Answered Questions { Chemistry }

Explain Thiele's structure for benzene. What is the difference between thiele's structure and modern structure (resonance hybrid) of benzene?

4610


why we need to synthesize impurities of midazolam

1772


What is the principle involved in conductometric titration?

625


Why Ethanol is Used for Standardization of GC Head space?

3715


What makes a molecule into organic molecule?

738






How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN?

2432


What are the applications of electrochemical cell? : Electrochemistry Corrosion

588


How are ph and pka related?

618


how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2032


What is dextro-rotatory and levo-rotatory?

673


What is meant by transmittance?

616


HI, I AM SUNIL BISHNOI.I AM PREPARING FOR ISHRO ASTRONOTES EXAM.PLEASE TELL ME ALL ABOUT THIS.

2039


why we should take dst factor for below 1%moisture samples

2188


Tell me about analytical method validation in QC

5529


Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

1370