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Chemistry Interview Questions
Questions Answers Views Company eMail

what is lithipone?

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

6 18655

what is redox potential of an organic compound?

Dr Reddys, Glenmark, Lupin, Reddy Labs,

2 15596

what is saponification of oils?

Cipla, Indian Potash Limited,

2 14070

How 'salting out' process is used in extraction?

PH.D Interview,

2 15641

What are geometrical isomerism? Explain them with an example?

PH.D Interview,

1 11516

Mention the factors affecting solubility of compounds?

PH.D Interview,

9 14100

NH2-CH2-COOH belongs to what structure?

Dr Reddys,

11 25166

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

1 5771

what happens when aminoacids react with alcohols?

GVK, GVK Biosciences, Pharmaceutical, Reddy Labs,

3 14847

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

Flamingo Pharmaceuticals,

9 29736

what are the 4 classes of unsaturated fatty acids?

College School Exams Tests, Snowcem Paints,

1 4571

why the atomic weights are in fractions?

1 6170

Which is useful in the manufacture of Insectisides?

RR Enterprises,

2 5756

The Name Benzene was Proposed By?

Cipla, GVK, Torrent Pharma,

23 22251

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

Cipla,

13 18882







Un-Answered Questions { Chemistry }

Does domestic/household used kerosene oil which is available in blue color (In India) can change its color over the due course of time say 8-10 years if keeping in plastic bottle? If so, in which color it will be turned to change, yellow or transparent or any other color. Please provide me the reply with strong technical approach. Since it has been asked during an interview. Please reply fast. I will be thankful to you if anyone can provide the supporting journals/write-ups/reference to favour of response.

598


What are the applications of electrochemical cell? : Electrochemistry Corrosion

211


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

2616


What is german silver?

221


How to choose the which salt is suitable for mobilephase

2155






Can a Nascent Hydrogen be used for fuel cell without damaging the equipment and if so how good would it be compared to other type of hydrogen.

1333


explain sour gas?

235


How do you explain the different solvent power of water and other organic solvent?

1730


why lead acetate s used in the Limit test of Arsenic? what role Lead Acetate plays????

15424


How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

1548


what is silicon chip

1241


How to calibration of the uv spectroscopy and its test?

257


WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

1532


Explain the properties of carbohydrates?

192


Examine samples of ldpe (sandwich bag, squeeze bottle) and hdpe (milk jug, grocery bag). What are some of the differences in the physical properties of these substances? : Polymer Chemistry

226