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 13694

Why a Na lamp is used in a polarimeter ?

Akums, ZCL Chemicals,

1 4157

WHY KBr is used in IR Spectroscopy

GVK,

3 13738

How can you prepare 0.05M Ammonium acetate volumetric solution?

2 24917

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

DRL,

2 13551

why are prepare daily working standard in ft ir

2631

IF WE INCREASE FLOW RATE RT DECRESE.WHY

2 10560

What can you contribute to the company?

2618

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 15775

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

Posh Chemicals,

2 10088

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

2557

various methos to calculate precision in validation methods in HPLC?

2 7464

How can you prepare 0.1% Phosphate buffer solution?

6 14405

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

Police Constable,

1 3282

difference between quality and quantity

3 12812

Un-Answered Questions { Chemistry }

Define dipole moment?

1033

what is the origin to prepare standard operating procedure

2275

What is split ratio in Gc? Splitless? how requirr to select?

847

What is the diference between residual solvents and organic volatile matter

1993

Why titration in which hcl and h2so4 is use?

1035

What is the requirement for brazil in the analytical method vslidation comparr to ich?

728

Mention a few application of cod test in environmental engineering practice.

1183

How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2558

How would you decide dissolution medium for NCE compound of class I drug

2222

how to get accurate result for Residue on evaporation in purified water

1603

What is hybridyzation? How can we find that which type hybridyzation in perticular compound like in CH4(hy is sp3)?

1107

Why is ph increases suddenly after the equivalence point?

999

How to establish relative response factor for hplc. Why it is required?

1178

Explain how do you separate the colors of ink?

927

Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1439

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