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 dissolution test apparatus calibration with salycilic acid tablets was stopped by FDA&USP from the year of 2009?

Aurobindo,

1 9298

What is UV cut off?

Sanmar,

1 3979

What is the importance of sulphated ash test?

1 5131

What is impurities in pharma analysis?

1 2722

What are the different zones in stability according to ICH?

Apotex,

1 3044

According to ICH,India is coming under which climatic zones?

Cipla,

1 3448

How does GC did work?

1 2718

Which detector is used in uv-vis spectrophotometer?

Glenmark,

1 10110

Why chromic acid wash is not recommended by USP for glassware cleaning?

Lupin,

1 2783

What is the difference between ROI & sulphates ash?

1 3596

What is difference between NDA & ANDA ?

Alembic,

1 4505

What is Rf value& Rx value in TLC?

Abbott,

1 9940

What are the six USP melting point reference standards?

1 3099

What is the size of capillary tube used for analysing melting point?

Apotex,

1 2980

What is the difference between drug product and drug substance?

Apotex,

1 3229

Un-Answered Questions { Chemistry }

What is kentchin? Is it real?

1102

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2726

During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.

3142

How do we fix the sample concentaryion in hplc method development. What is the basis?

1253

Why use only methanol,used determinationof moisture content not use other solvents

1459

which gas is used in preaparation of bit salt

2363

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

1082

Why is acetic acid added?

1247

State beer’s law.

1042

i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2783

hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.but our company didn't give d OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents along with sample RESUME,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com

2963

Why is starch indicator added towards the end point?

1052

What is related substance by HPLC impurity limits as per USP?

1164

Give the IUPAC name for [Co(NH3)5Cl] SO4

1138

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

2116

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