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Chemistry Interview Questions
Questions Answers Views Company eMail

what is lithipone?

Dr Reddys, Jubilant, Lupin, ONGC, Reddy Labs,

6 19816

what is redox potential of an organic compound?

Dr Reddys, Glenmark, Lupin, Reddy Labs,

2 16292

what is saponification of oils?

Cipla, Indian Potash Limited,

2 14674

How 'salting out' process is used in extraction?

PH.D Interview,

2 16089

What are geometrical isomerism? Explain them with an example?

PH.D Interview,

1 11900

Mention the factors affecting solubility of compounds?

PH.D Interview,

9 14934

NH2-CH2-COOH belongs to what structure?

Dr Reddys,

11 26698

what are ligases?which type of reactions they will catalyse?

1 6050

what happens when aminoacids react with alcohols?

GVK, GVK Biosciences, Pharmaceutical, Reddy Labs,

3 15659

what is the difference between coordinate covalent bond and covalent bond?

Flamingo Pharmaceuticals,

9 30728

what are the 4 classes of unsaturated fatty acids?

College School Exams Tests, Snowcem Paints,

1 4906

why the atomic weights are in fractions?

1 6505

Which is useful in the manufacture of Insectisides?

RR Enterprises,

2 6136

The Name Benzene was Proposed By?

Cipla, GVK, Torrent Pharma,

24 24604

Number of Sigma Bonds Present in Benzene are same as ..?


13 20345

Un-Answered Questions { Chemistry }

How hydrate is forming along with API?


What is the calibration of uv process and preparation


What is the composition of Barford Reagent?


1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.


Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?


Explain how do you prepare a solution of 1 m hcl?


how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.


What is hybridyzation ? How can i find that which type hybridyzation in perticular compound like in CH4(hy is sp3).


what is biorelivent dissolution media?


Why is Francium(Fr) so difficult to react with water?


what is partion and column chromatography


What is the number of protons in an atom?


what is the difference between potentiometric titration and karl fischer titration?


Is it nessesary all multimedia dissolution require descriminatory?


My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards