Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

General Chemistry (478)
Chemistry AllOther (190)

Chemistry Interview Questions

Questions Answers Views Company eMail

what is use of acetonitrile compare to methanol in RP-HPLC Method devlopment

Neuland, Orchid,

7 24255

how do you make a amine sugar

Al-Manhal, Reddy Labs,

2327

is a bonded water molecule in an organic material can be easlisy and accuractly determined by KF rather than LOD

2 7657

How to know HPLC column performance?

Meghmani Organics,

4 13190

What is heavy water

Meghmani Organics,

3 8833

What will be the effect on HPLC analysis result if three mobile phases given separately through three valves and same proportion mixed together and given by one valve?

LOIL,

1 5188

Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2836

Why PH range from 0to14.

College School Exams Tests, Reddy Labs, Wings Customer Care,

2 14256

what are the different by which a new molecule can be characterised ?

Cipla, Reddy Labs,

2 6269

give an example of secondary standard (solution).

1 5308

why you are using benzoic acid for water content determination in TEA

2 7813

difference between instrumenent and equipment

6 13975

mixed 1.0 ml of methanol and 1.0 ml of toluene and injected in gas chromatography.will you prove that both solvents are in the ratio 1:1(not by area normalization)

1 3696

What is the principle of GC/HPLC ?

BioCan, Biocon, Megafine Pharma,

4 57369

pH range of methanol and acetic acid is ........

1 6386

Un-Answered Questions { Chemistry }

in which situation require to change rs specification?

709

How to do regeneration of Metacarb Pb plus column?

2525

Explain acid gas?

985

explain sour gas?

1004

Which parameter require to do for analytical method equivalency?

736

Tell me how many milliliters of water would you add to 100 milliliters of a 0.350 molar solution to make a 0.100 molar solution?

889

How will you calculate how many moles of glucose present in 320 ml of 5.0 m of glucose solution?

1046

What is si unit of viscosity-coefficient?

1065

In performance Check of GC Why Hexadecane Peak is Considered

2993

What is difference between LVT and RVT Viscometer?

7039

what is mean by nitrosamine impurities?

1021

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)

2560

what is mean by ambient temperature?

874

[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

713

Sir, please give me previous year question paper for RRB for the post CHEMICAL AND METALLOGICAL ASSISTANT.

2670

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