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 chromatograpbic purity 90% is there, in assay 70% is there. How will you prove remaining 30%.

Dr Reddys,

3 8610

about analytical chemistry

Apotex,

1995

formula of petrol?

Biocon, Reliance,

2 5667

What is differences between normality and molarity.in which cases both are used?

GVK,

1 7627

in gas chromatography what is the difference between gas flow rate and average linear velocity ?

USV,

2604

what are the ideal conditions for coloumn storage

Claris Lifesciences, Srikem Laboratories,

3 7317

i want to know about headspace and interview question on headspace

Srikem Laboratories,

1 5534

For water content determination, if the material is insoluble in methnaol and ethylene glycol mono methyl ether, what other diluent can we use.

2001

class of solvent regarding Residual solvent e.g. Acetone his class

1 4156

What is unit of mass defect?

MSC,

1 3115

What is reagent?

BSC, Hygro Chemicals,

4 6212

why we multiply 1000 in the determination of kf factor ?

Stellence Pharm Science,

3 8703

why we measure PH of a solution in PH only why not POH ?

Stellence Pharm Science,

1 5016

What Is the mechanism of pyridine and methanol .what products produce

Alkem Labs,

1 3841

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

3103

Un-Answered Questions { Chemistry }

how the compound separate in coulunm,explain

2533

What is the composition of Barford Reagent?

2129

As a chemist working with Protactinium, what safety measures and precautions would you take due to its radioactivity?

574

please explain about aluminium hydroxide assay

1132

What is gelatinization?

1618

what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3669

What is the diference between residual solvents and organic volatile matter

2054

composition of gun metal

2103

Write the each half cell reaction and also net cell reaction for a cell

2920

Why be is not soluble in liquid ammonia?

1112

Why is acetic acid added?

1166

How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN?

3003

why do hard water never produce foam when a soap is dissolved?

1042

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2669

What is photoelectric colorimeter?

1035

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