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 does the result variation in hplc and gc with same sample ?

Matrix,

4 12495

How will you select mobile phase in HPLC Method Development

4 18297

how to regulate noise in hplc ?

2 9849

why results are variation in same samples analysis in gc and hplc ?

2 9368

why base line not start from zoro in GC Chromatograme.

Merck,

1 8681

What is cleaning validation of rinse and swabe and its limit with caculation formula.

5 12295

In order to avoid the pyridine catalyst use in many synthesis which is harmfull to environment, which catalyst can be used....?

Hetero, Lupin, Reddy Labs,

2401

what is the purpose of using cyclhexane in synthesis?

1 4263

what is the difference between c-8 and c-18 column

7 24282

why deutiriated chloroform used in NMR for sample prepration. what reaction takes place.give reasons

1 7684

how do u optimise hplc method

1 7795

name any insolvent compound?

1 5415

How to calculate %w/w and %v/v of a component(or solvent)by NMR

ACME, Vimta Labs,

1 9218

How to prepare 10% HCl from 36.5% HCl solution.

Dr Reddys,

5 123461

How to prepare 50 ppm ammonia solution form 25% ammonia solution?

Cadila, IIT,

8 30831

Un-Answered Questions { Chemistry }

What is the requirement to give RFlow when using RID detector?

3082

What is electrode potential? : Electrochemistry Corrosion

1167

If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

2303

Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

2709

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

558

which are the sizes of capsules?

971

What is the difference between spectro meter and spectro photo meter?

11515

How Many grams of solid iodine are produced by the decomposition of 25.4g of hydrogen iodine gas?

3019

Explain substituted hydrocarbon?

1060

How does Protactinium contribute to our understanding of Earth's history and the behavior of elements in natural systems?

604

Why is mercuric chloride added?

1066

Explain the relations between number of carbon atoms in alkanes and retention time ?

2148

Define:minerals and ores

2575

Name the three elements which are forms carbohydrates?

1022

What is acid anhydride of h2co3?

1020

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