Chemistry Interview Questions
Questions Answers Views Company eMail

what is lithipone?

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

6 22250

what is redox potential of an organic compound?

Dr Reddys, Glenmark, Lupin, Reddy Labs,

2 17673

what is saponification of oils?

Cipla, Indian Potash Limited,

2 15869

How 'salting out' process is used in extraction?

PH.D Interview,

2 17105

What are geometrical isomerism? Explain them with an example?

PH.D Interview,

1 12731

Mention the factors affecting solubility of compounds?

PH.D Interview,

9 16942

NH2-CH2-COOH belongs to what structure?

Dr Reddys,

11 29564

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

1 6604

what happens when aminoacids react with alcohols?

GVK, GVK Biosciences, Pharmaceutical, Reddy Labs,

3 17199

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

Flamingo Pharmaceuticals,

9 32948

what are the 4 classes of unsaturated fatty acids?

College School Exams Tests, Snowcem Paints,

1 5581

why the atomic weights are in fractions?

1 7163

Which is useful in the manufacture of Insectisides?

RR Enterprises,

2 6836

The Name Benzene was Proposed By?

Cipla, GVK, Torrent Pharma,

24 30220

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

Cipla,

13 23868


Un-Answered Questions { Chemistry }

In Assy by potentio metry titration method how select MET U ,DET U, SET U,

1304


Which parameter require to do for analytical method equivalency?

314


How hydrate is forming along with API?

1796


How BIS Decedied the LSF value 0.66-1.02 with calculation.

1771


In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.

2597






Why ph scale range is 14?

610


Why do we use vaccum in Loss on drying test?

1203


what is mean by nitrosamine impurities?

533


What is the difference between fractionation and distillation?

586


Explain what are enzymes?

612


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

1454


what is the disso medium for tropsiun chloride

1793


How are ph and pka related?

618


. Given that 2Hg2+ (aq) + 2 e- Hg22+(aq) E0 =0.92V Hg22+ (aq) + 2 e- 2Hg(l) E0 =0.85V Calculate standard free energy change and K for the following process at 25oC Hg22+(aq) Hg2+ (aq) + Hg(l)

6003


What is the requirement to give RFlow when using RID detector?

2588