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 we are use glass viscometer, and what is calculation manual calculation formula as per USP. How many types of viscometre in glass type viscometer.

Cipla,

2284

full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ?

Orchid,

10 38414

can you pls provide chemistry previous papers for the post of trainee chemist in ap genco

2609

why KBr is used in FTIR SPECTROSCOPY and why is it necessary to triturate KBr during FTIR analysis?

Hikal, Lupin, Wockhardt,

25 122946

what is stability study ? why it is needed and how itis done

Dr Reddys, RB,

2 28913

how to prepare esters to aldehydes?

Biocon,

7 14723

What is hydrogenation reaction .What pressure should we use generally in hydrogenation reaction using auto clave?

Sun Pharma,

4 9905

what is the chemical composition of aluminium?

1 4418

why water, methanol, ethanol ets solvents are used in UV SPECTRIPHOTOMETER for blank reading ?

7 28513

why the same column give different retention time in hplc?

7 16653

If solvent change in cystallisation it was major change or minor. pls give justification

3 5623

How will decide to use HPLC OR GC for developing method for unkown compund

5 16371

What is the major difference b/w Drift and Noise

Aurobindo, Dr Reddys, Reddy Labs,

4 39370

what king of work is done in Regulatory Affairs in Pharma industry ?

Quintiles,

3 14782

can some other acids like nitric acid or HCl can be used in the calibration of UV.Vis. spectrophotometer????

Cipla,

2 9937

Un-Answered Questions { Chemistry }

Define corrosion? : Electrochemistry Corrosion

1055

What is determining factor in the oxidation reduction reaction?

1382

How a balanced equation can be used to find the mass or volume of an unknown quantity in a stoichiometry?

2482

Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2554

why we shrink our body during cold

1723

Does ethylene polymerize under mild conditions in the absence of a catalyst? : Polymer Chemistry

1190

What is a cell?

1098

How many millilitre is equal to 1 litre and how many microliter is equal to litre?

1028

Which of the above conductivity measured during conductometric titration?

1019

The use of vermilion on rubric of the Tartar Relation is confirmed by the presence of three lines attributed to HgS. Why should this diatomic have more than one vibrational line?

2608

which gas is used in preaparation of bit salt

2266

How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

4152

why athanol-water mixtuere have maximum viscocity in wt% 40?

1680

Explain Thiele's structure for benzene. What is the difference between thiele's structure and modern structure (resonance hybrid) of benzene?

5138

FDA MHRA

2557

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