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

Explain What is a base line in GC and HPLC?

Meghmani Organics,

2 4290

if relative response factor is 1.07, to select how much value

Natco,

1 4342

What is the use of ELSD in HPLC?

Anthem,

3 6477

Why pH limited in between 1 to 14

3 4116

What is difference between FID and TCD in gas chromatography

Cipla, VPCPL,

1 10287

What is the difference between high pressure gradient and low pressure gradient in hplc?

Cipla,

1 7186

what is dwell volume in HPLC?

Aurobindo, Cadila, Strides, SUN, Sun Pharma,

2 7784

what does pH stand for?

Orchid,

4 8316

why the pH scale range is 0-14?

Clariant, MIU, Torrent Pharma,

1 3014

What is principle of polarimetre

Aurobindo,

1 3382

Definition of beers_ lamberts law

Aarti Industries, Agio Pharmaceuticals, Emcure, Supriya Lifescience,

4 8166

Why monograph of hplc coming upperside of drift but in IR monograph coming in drift side?

1 4092

Why a1% value is used for some product ? What is the criteria for selection a1% value ?

Zim Laboratories,

2294

Why the ph limit (1_14) Is used?

Cipla,

3 8232

why we use holomium oxide for UV calibration ?

Al Razi Pharmacy,

2 4787

Un-Answered Questions { Chemistry }

Arrange by acidic values : phenol, nitrotolouene and o-cresol?

1028

Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

2138

Explain why do some medications contain hcl?

1096

What is mineral water?

1020

in hplc chromatogram started from left to right and in uv spectrum started from left to right

894

Define chemical corrosion. What are the types of chemical corrosion? : Electrochemistry Corrosion

968

What group of elements were called the inert gases?

1076

What is ciprofloxacin hcl?

998

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

1063

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

1362

Active Ingredients in septilin ??

1646

Why is the indicator eriochrome black(ebt) shows wine red color at the beginning and blue color at the end?

1392

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

747

Explain extraction of ephedrine from a mineral block?

1009

4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

2663

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