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 72127

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 11951

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

Neuland,

4496

What is the Column Endcaping in HPLC ?

Aptuit Laurus,

3 15330

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

Orchid,

2 10388

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

1 17848

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

1 4025

difference between pH & pOH ?

4 22203

why Nacl solution called as brine solution?

Infosys, ION Solutions,

3799

why is wick needed to burn a candle ?

3 5723

what is hollfman degradetion

4 13271

who is the father of sterio chemistry

GVK,

4 8536

what is purine metabolism

1 4932

what r the reasons to get peak telling?

Cipla,

6 16544

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

1 4198

Un-Answered Questions { Chemistry }

what is mean by dissolution biowaiver study?

941

how can I make the copper get white bye any salt or acit?

2215

if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

686

FDA MHRA

2604

Explain the use of glacial acetic acid?

1110

What are constituents of brass?

1223

why are prepare daily working standard in ft ir

2671

on saturation solubility study data how we can find out the bcs class of drug?

904

Explain the difference between hcl acid and hcl gas?

1020

If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

809

for which product require to do content uniformity? what is limit of cu?

821

Is benzene aromatic?

1192

what is stero electronic factor.2 what is steric control factor and what is product control factor

2136

If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

864

Explain the function of a monosaccharide?

1050

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