Chemistry Interview Questions
Questions Answers Views Company eMail

what is lithipone?

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

6 15722

what is redox potential of an organic compound?

Reddy Labs, Lupin, Glenmark, Dr Reddys,

2 13368

what is saponification of oils?

Indian Potash Limited, Cipla,

2 12191




How 'salting out' process is used in extraction?

PH.D Interview,

2 13953

What are geometrical isomerism? Explain them with an example?

PH.D Interview,

1 10428

Mention the factors affecting solubility of compounds?

PH.D Interview,

9 11667

NH2-CH2-COOH belongs to what structure?

Dr Reddys,

11 20765

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

1 4795

what happens when aminoacids react with alcohols?

Reddy Labs, GVK, Pharmaceutical, GVK Biosciences,

3 12583

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

Flamingo Pharmaceuticals,

9 26477

what are the 4 classes of unsaturated fatty acids?

Snowcem Paints, College School Exams Tests,

1 3592

why the atomic weights are in fractions?

1 4994

Which is useful in the manufacture of Insectisides?

RR Enterprises,

2 4654

The Name Benzene was Proposed By?

GVK, Cipla, Torrent Pharma,

21 17068

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

Cipla,

13 14715







Un-Answered Questions { Chemistry }

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

5314


how can I make the copper get white bye any salt or acit?

980


what is the disso medium for tropsiun chloride

900


Identify problem faced when mass spectroscopy is used with HPLC system ?

675


Practically why we get negative absorption in UV SPECTROPHOTOMETER when the time of cleaning sample analysis. is negative absorption in Uv valid or not?

1197






How Many grams of solid iodine are produced by the decomposition of 25.4g of hydrogen iodine gas?

1506


A ha tc is actual defination of retention time?

217


Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

651


What is control room temperature and which guide line says?

343


a sample of gas occupies a volume of {450.0 ml}at {740 mm Hg}and[16C]determine the volume of this same sample at [760 mm Hg]and [37c]?

2897


In pickling process of titatium with HCL . how to know if the acid is not effective after pickling several batch. is there any test to know it. (not practically)

323


we shall use Dichloromethane in last stage of API.

1719


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

1395


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

858


how to select short coloum and long coloumn for new molecule

1017