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 acid base titration, after complet consumption of HCl by NaOH, addition of next drop of NaOH will give pink colour with phenolpthalein indicator. Why this pink colour appear? Why not blue, black, green or anything elese?

3 11530

Why we are using only KBr in IR spectrometer why not KCl

Dr Reddys,

10 35731

WHAT IS ORGANIC CHEMISTY ? GIVE ME ANSWER AS AN M.SC LEVEL

Zydus Cadila,

9 14269

why potassium dicromate use in calibration of UV VIIBLE SPECTROCOPY ?

3 8785

how to pepare 6.8 pH phosphate buffer

10 83062

what is pK & pKa value

3 13848

what is range of Vivible UV ? What is UV& Vivible spctroscopy use for ?

6 12794

What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?

Cipla, Reddy Labs,

4 41502

What is difference between Primary and secodary reference standard?

2 19631

Give the IUPAC name. i) [Co(NH3)5SO4]Cl ii) [Co(NH3)5Cl] SO4 iii) [CoCl.CN.NO2.(NH3)3]

3 44179

Give the formula of the following compound. i) Chloropentaamminecobalt(III) chloride ii) tris(ethylenediamine)cobalt(III)chloride iii) tetraamminesulphatocobalt(III)nitrate

1 6669

Discuss role of coordination chemistry in: (a) Biological system (b) Analytical chemistry (c) Medicinal chemistry

3295

Out of (CH3)3C- and (CH3)2CH- carboanion, which is more stable and why?

2 10574

WHAT IS UNIT OF ABSORBANCE AREA IN HPLC OR UV DETECTER

8 27914

why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate

1 5496

Un-Answered Questions { Chemistry }

Why is ammonia solution added while preparing edta solution?

1386

Mention a few advantages of photoelectric colorimetric determination.

1381

what is mean by ambient temperature?

916

Name the element which was used to make the first atomic bomb?

1065

what is mean by dissolution hydrodynamics?

826

What is meant by transmittance?

1081

Define an isomer?

1004

Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?

2982

How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2545

is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

2168

how you start RS method development when for new product?

721

Atactic polypropylene is always produced with the [cp2zr(r)]+ catalyst. Explain this on the basis of molecular-level interactions. : Polymer Chemistry

1090

How much is the standard area for glc analysis

2284

Q1. Why did you enter the field of chemistry? Q2. What has motivated you to take chemistry as your professional subject and have you motivated anyone towards your field?

2293

Why irmoisture balance is used for corrugated box moisture testing

2404

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