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 electrode potential? : Electrochemistry Corrosion

1162

What are the applications of electrochemical cell? : Electrochemistry Corrosion

1163

How to do spike of aflatoxin in peanut to get maximum recovery

1127

What is stepping ripple and step accuracy

1186

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

1095

What is the limit for single maximum impurity limit as per USP??

1 1999

Why we use potassium dichromate in uv calibration Exact reason behind it??

1256

UV and PDA detector, which have less signal to noise ratio?

1132

Difference between the quantitative analysis and qualitative analysis?

1175

HPLC in sequences analysis was taken wrong method and one blank & Standard is running so what to do

1244

What is related substance by HPLC impurity limits as per USP?

1106

What is a difference between potency and purity?

1220

Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

911

In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

925

in hplc chromatogram started from left to right and in uv spectrum started from left to right

950

Un-Answered Questions { Chemistry }

What are filters? Why are they used?

1095

Explain what is meant by "c2 symmetry" and "mirror plane symmetry". Can a molecule with "mirror plane symmetry" ever be chiral? : Polymer Chemistry

1024

Is napthalene aromatic?

1338

What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1600

which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

2160

What is glacial acetic acid?

1060

How is librated iodine estimated?

1090

which cationic polymer is compatible with poly aluminium chloride?

2504

if you given one product then which tests you will perform?

707

What is the range of uv & vis lamp in spectrophotometer?

1112

How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

734

What is the function of diethyl amine?

1105

Name the two most common end-products of alcoholic fermentation?

1003

Protactinium-233 is used in the thorium fuel cycle. Explain how this cycle operates and its potential benefits in nuclear energy production.

679

Mention a few advantages of photoelectric colorimetric determination.

1381

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