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

why KF factor is between 4.5 to 7.5 mg/ml ? why ? why sometime pyridine is used in analysis like in raw material solvent like acetone etc?

Aurobindo, GVK, Sohan Healthcare,

11 72089

Acid value defination is numbber milligrams of KOH required to nuetralise the acid present in one gram oil & fats but why not use NaOH for nuetralisation?

5 11935

what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

Neuland,

4490

What is the Column Endcaping in HPLC ?

Aptuit Laurus,

3 15315

When performing Moisture content how to you say only Methanol react with water not product Explain?

Orchid,

2 10369

why lead acetate s used in the Limit test of Arsenic? what role Lead Acetate plays????

1 17847

give me method of calculating co relation of coefficient for HPLC,SOR & ANY OTHER

1 4015

difference between pH & pOH ?

4 22187

why Nacl solution called as brine solution?

Infosys, ION Solutions,

3795

why is wick needed to burn a candle ?

3 5712

what is hollfman degradetion

4 13252

who is the father of sterio chemistry

GVK,

4 8524

what is purine metabolism

1 4929

what r the reasons to get peak telling?

Cipla,

6 16519

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

1 4191

Un-Answered Questions { Chemistry }

Why is disodium salt of edta preferred to edta?

1541

if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

980

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

787

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

1470

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

912

why do antimony and bismuth have the same electron affinities?

2472

How is measurement of ph made?

1056

We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

1719

What is wave number?

1126

(CH2)n + nO2. ---->Co2 + nH2O + energy what is this mean with details

1628

How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1779

Define an electro chemical cell. Give one example? : Electrochemistry Corrosion

1012

4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

2719

I need organic mixture analysis viva questions & answers

6279

Actinium is often considered a rare and scarce element. How does its rarity impact its industrial uses and research purposes?

558

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