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 the effect of injection volume calculate flow rate in perkin elmer headspace? (ccm parameter in HS)

1 3154

How to interlude aldehyde group in aromatic compound

Aurobindo,

2 4217

how to prepare 10%sulphuric acid from 98% h2so4?

Sterile India,

2 5693

How can we calculates the solubility of the drug in different medias by injecting in to hplc????(solubility studies)

Super Pharmaceuticals,

2 5008

What is the use of Holmium (III) Oxide???

Finar Chemicals,

1 5441

India is. Under which zone as per QF1.?

Acebright, Aurobindo, Gland Pharma,

4 16648

how to calculate the Step and ripple accuracy for pump gradient test for UPLC?

Wockhardt,

1 10361

why salicylic acid not use for dissolution.

Cipla, Indo Baijin Chemicals,

2 5998

Which water can use Hplc analysis

BioGenomics, Dr Reddys, Reddy Labs,

9 14432

Why there is no bond with 100% ionic character...??

1888

if you have given a blank water how you analyse by general analytical techniques?

2088

what is the analytical procedure for COD and BoD

Dai-Ichi,

1 5029

Why pH lies between 0 to 14 only

PI Industries, Unimark Remedies,

4 11857

chlorination of methane is possible and a mixture of products are obtained. Is flourination and Bromination of methane is possible?

Natco,

2083

Although bucky ball is an allotropic form of carbon but it is included in organic chemistry?

2 8115

Un-Answered Questions { Chemistry }

How to fix the sample conc. in Related substances test by HPLC?

1145

how do you make a amine sugar

2430

Why we check moisture,ash & AIA in product

1945

what is mean by 40 in the dissolution basket mesh size?

841

What is meant by ph of a solution?

1085

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?

2789

What are the electrodes used in the measurement of ph for the determination of pka?

1342

Why is starch indicator added towards the end point?

1052

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

3026

How to find peaks in ftir chromatography

1747

What is the accepted microbial load in APIs as per USP.........?

2566

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

855

Why we have to add 200mg Na2CO3 in preparation of 0.1N sodium thiosulfate solution?

1636

What is the principle of Particle size analysis and zeta potential

2695

What is the purpose of octyl silane columns?

4344

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