Chemistry Interview Questions
Questions Answers Views Company eMail

what is lithipone?

Dr Reddys, ONGC, Reddy Labs, Lupin,

6 13612

what is redox potential of an organic compound?

Reddy Labs, Lupin, Glenmark,

2 11741

what is saponification of oils?

Indian Potash Limited, Cipla,

2 10845




How 'salting out' process is used in extraction?

PH.D Interview,

2 12835

What are geometrical isomerism? Explain them with an example?

PH.D Interview,

1 9508

Mention the factors affecting solubility of compounds?

PH.D Interview,

9 10711

NH2-CH2-COOH belongs to what structure?

11 18567

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

1 4220

what happens when aminoacids react with alcohols?

Reddy Labs, GVK, Pharmaceutical, GVK Biosciences,

3 11146

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

9 25004

what are the 4 classes of unsaturated fatty acids?

Snowcem Paints, College School Exams Tests,

1 2980

why the atomic weights are in fractions?

1 4181

Which is useful in the manufacture of Insectisides?

RR Enterprises,

2 4163

The Name Benzene was Proposed By?

GVK, Cipla, Torrent Pharma,

21 15321

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

Cipla,

13 13101









Un-Answered Questions { Chemistry }

What are acounting Pi electron's?

815


what happens to the unit particles of a solute when it dissolves on a liquid?

892


Arrange the following in their increasing polarity order Carboxylic acid, hydroxyl, phenyl, amino and aldehyde

245


why are prepare daily working standard in ft ir

1369


what is the difference between elctrefining and electrolysis?

783






Suppose we prepared pH buffer solution in lab.and calibrate against NIST solution, and same shall going to used upto 30 days. is it possible to stable pH and appearance? suggest?

498


What is the principle of Thermal conductivity detector and FID?

1215


pls send me ongc privious entarnace exam papers

967


The rate constant for the second order reaction is 0.54/M.s at 300oC. How long (in sec) would it take for the concentration of NO2 to decrease from 0.62M to 0.28 M? 2NO2(g) 2 NO(g) + O2(g)

1070


Dear sir, This is R.Kadambavadani working in a pharma industry. while doing RS analysis of ibuprofen API, unknown peak eluting some times in the 0.6 Min RT. Kindly send me what is the exact reason behind that. also am using ACN the mobile phase.

128


What is third generation HPLC Columns?

488


What is the composition of Barford Reagent?

485


what is difference between zero air gas and o2 gas

4640


How to decide the standard concentration for related substances hplc method

454


Normally entropy is expressed as q/T. But, work and heat have same unit. Why can't it be replaced by work?

875