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

How to use RF and rrf in Rs calculation( either multiply or divide)?

Micro Labs,

4 13980

Why a Na lamp is used in a polarimeter ?

Akums, ZCL Chemicals,

1 4301

WHY KBr is used in IR Spectroscopy

GVK,

3 13996

How can you prepare 0.05M Ammonium acetate volumetric solution?

2 25240

Why using 0.5% acetone in methanol mobile phase for HPLC Gradient performance check.

DRL,

2 13770

why are prepare daily working standard in ft ir

2720

IF WE INCREASE FLOW RATE RT DECRESE.WHY

2 10745

What can you contribute to the company?

2694

in hplc calibration injector linearity pass,it means inj and det is good. why to perform detector linearity is it required, if it is required,what is difference between injector and detector linearity in hplc calibration

Dr Reddys, Hetero,

4 16104

how can you decide API molucule acedic or basic compound by test?

Posh Chemicals,

2 10258

acceptance criteria for lod & loq by standard deviation of response and slope??

2646

various methos to calculate precision in validation methods in HPLC?

2 7669

How can you prepare 0.1% Phosphate buffer solution?

6 14797

wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language

Police Constable,

1 3486

difference between quality and quantity

3 13044

Un-Answered Questions { Chemistry }

. 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)

6709

Identify problem faced when mass spectroscopy is used with HPLC system ?

1934

what is the purpose of using cyclhexane in synthesis?

4328

Why is estimation of copper done at 620 nm wave length?

1504

Why we use DPPH in ESR and DPH in fluorescence spectroscopy?

2650

What are some common isotopes of Actinium, and how do they differ in terms of stability and uses?

743

What is protein - according to chemistry?

1242

FDA MHRA

2656

what is the difference between poolymer concrete and normal concrete

2313

What is the purpose of adding urea?

1443

What group of elements were called the inert gases?

1171

What can you contribute to the company?

2694

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

7606

in dissolution why pool sample needed? in which type of drug pool sample need?

3228

Explain how do you extract ephedrine from a mineral block?

1071

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