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

in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

Glenmark, Neuland,

2 9386

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2590

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

APM, Graviti Pharmaceuticals, Ranbaxy,

1 11370

How do u differentiate primary

1 3145

WHEN AN UN KNOWN SAMPLE IS GIVEN TO U,HOW WILL U START THE ANALYSIS(ie FIRST WHICH TEST TO BE DONE,NEXT,THEN NEXT),HOW WILL U DECIDE WHICH TYPE OF ANALYSIS TO BE DONE FOR IT?

Aurobindo,

2 10853

WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR

Aurobindo, Meghmani Organics,

4 12199

IN pH CALIBRATION,CALIBRATION IS DONE FOR pH METER OR ELECTRODE?HOW WILL YOU JUDGE THAT THE METER TO BE CALIBRATED WITH 4,7,9.2 BUFFERS?EXPLAIN TEMPERATURE EFFECTS ON pH.

Aurobindo,

1 10945

AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

2019

What is a base line?

2 11194

what is differance between density and specificgravaty

Neuland,

2 11632

what is defferance between dipolemoment and polarity

Neuland,

1 8182

In standard weight box used for calibration of analytical balance there are two numbers (Qty) of 20mg, 200mg,2.oGM weights. Why?

Orchid,

2 15891

WHAT IS USE OF ION PAIR REAGENTS?

3 10289

How to calculate signal to noise ratio by this formula 2H/h where h from where and how to measure

2 10475

define electrochemistry?

1 4750

Un-Answered Questions { Chemistry }

Observe the following number to four significant figures and express the result in standard exponential notation: 0.006543210?

953

i am going to face exam for the post of executive trainee (chemistry) in M.P Power generation company,i want to know the level of exam ,type of questions can be asked,and about any book whigh i can refer.

2323

what is the syllabus for mahagenco recruitment drive for the post of chemist

3218

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

2655

what is mean by nitrosamine impurities?

1021

While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2801

What is viod volume and peak purity in HPLC?

2827

what is the indicator used?

993

What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

783

Suppose we prepared pH buffer solution in lab.and calibrate against NIST solution, and same shall going to used upto 30 days. is it possible to stable pH and appearance? suggest?

1849

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

1689

What can be the supporter of combustion except oxygen.

2765

Which is the highly polar and highly non polar column in HPLC?

2246

what is the purpose of using cyclhexane in synthesis?

4193

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

1594

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