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

in calibration of disintegration test apparatus why cycle limit is 28-32?

Caplin Point,

2 13022

what is thickness of the polystyrene film

Aurobindo,

6 9447

What is organic metal?

Cipla,

2 7037

Why pH range is maximum 14.0

UPL,

6 29404

what is the structure of DOWEX-50

5521

What is the difference between Normal phase method & Reverse method in HPLC ? Define application of both method.

4 21311

In Analytical method development related substance method when did follow w/w method when did follow area normalisation method

Dr Reddys, Sun Pharma,

2 14172

In Analytical method development related substance method when did follow w/w method when did follow area normalisation method

5 16272

15% Naoh molarity in a given 1liter of soluton

2 8660

how to make a 100ml solution with given 10gm of naoh

Calyx, CCIL,

6 10346

why a ph meter require KCL solution for their storing condition?

Aurobindo,

1 42711

What is the difference between PVC and uPVC plastic?

4 8974

What is Signal to noise ratio?

3 13795

what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?

GVK, Millennium,

1 4009

is is advisable to give a Pewter finish n Stainless Steel ? State the Advantages & disadvantages.

2884

Un-Answered Questions { Chemistry }

In Dissolution Test why limit is define Q+5% what is the role of +5%.

3111

which batch require to use for analytical method validation?

814

seminal on pyrimidine

2193

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

2865

how require to set assay concentration for standard and sample?

933

What can you contribute to the company?

2644

Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2738

Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

917

before starting analytical method valodation what you checking? and how giving preference to start validation?

813

What is kentchin?

1045

Why ph scale range is 14? Why it is not less or not greater than 14? Solution of hcl or hydrogen containing liquid has a ph. But if the solution is kmno4 here nothydrogen power does it ph?

1178

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)

2597

cefoperozone and sulbactam inj. hplc test method

2697

composition of stainless steel

1830

What is the reaction that occurs between iodine and sodium thiosulphate?

1052

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