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Chemistry Interview Questions
Questions Answers Views Company eMail

How to use RF and rrf in Rs calculation( either multiply or divide)?

Micro Labs,

4 13822

Why a Na lamp is used in a polarimeter ?

Akums, ZCL Chemicals,

1 4217

WHY KBr is used in IR Spectroscopy

GVK,

3 13840

How can you prepare 0.05M Ammonium acetate volumetric solution?

2 25055

Why using 0.5% acetone in methanol mobile phase for HPLC Gradient performance check.

DRL,

2 13632

why are prepare daily working standard in ft ir

2670

IF WE INCREASE FLOW RATE RT DECRESE.WHY

2 10639

What can you contribute to the company?

2641

in hplc calibration injector linearity pass,it means inj and det is good. why to perform detector linearity is it required, if it is required,what is difference between injector and detector linearity in hplc calibration

Dr Reddys, Hetero,

4 15908

how can you decide API molucule acedic or basic compound by test?

Posh Chemicals,

2 10153

acceptance criteria for lod & loq by standard deviation of response and slope??

2591

various methos to calculate precision in validation methods in HPLC?

2 7547

How can you prepare 0.1% Phosphate buffer solution?

6 14576

wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language

Police Constable,

1 3367

difference between quality and quantity

3 12912


Un-Answered Questions { Chemistry }

Why ammonia is used as buffer solution in estimation of copper by EDTA method

1866


Explain what is meant by "c2 symmetry" and "mirror plane symmetry". Can a molecule with "mirror plane symmetry" ever be chiral? : Polymer Chemistry

1025


Difference between hlaf and rlaf

2109


why are prepare daily working standard in ft ir

2670


What does it mean for a molecule or a ligand to be "chiral"? What properties does chirality impart to a molecule? : Polymer Chemistry

1038


Protactinium has a relatively short half-life for some of its isotopes. How does this characteristic impact its practical uses and research?

576


Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2865


What are the methods used to control the corrosion? : Electrochemistry Corrosion

1019


Explain the properties of carbohydrates?

1034


is it nessesary to do solution stability for 7 days?

774


How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN?

3003


before starting analytical method valodation what you checking? and how giving preference to start validation?

806


how you start RS method development when for new product?

721


In order to avoid the pyridine catalyst use in many synthesis which is harmfull to environment, which catalyst can be used....?

2401


Why we check moisture,ash & AIA in product

1881