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 can use only 4 and 7 and 9 buffers in pH calibration

1 5259

How to do regeneration of Metacarb Pb plus column?

2521

we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was failed. then how can i justify that the samples analyzed on the system during this 6 months was wright? how can i forward in to the next step for those batches?

5 12564

What is the solvent/material used to balance spirit level in analytical balance?

Glenmark, MMC Health Care,

5 13527

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 6240

why do we use around only 60 mg of K2cr2o7 in the UV calibration -control of absorbance test?

Reddy Labs,

3 14189

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 4315

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 7712

Can any one tell what is RECALL OF PROCEDURES is

Macleods,

1 3525

what is the difference between capillary and glass column in GC

1 8163

how to do heavy metal test for colour sample?

Cipla,

1 4931

differance between L1 and L7 columns

Everest,

5 25418

what is basc principle of the HPLC,IR,UV AND GC? what is difference between diffusion spectra and transmision spectra in IR?

Cadila, Dr Reddys, GICC, Mylan, Sygene, Torrent Pharma, Zydus Cadila,

1 21310

plz tall me that any pharmacopeia and guideline is par meted to use 1.68,4.01,7.00,9.00,12.45 buffer for ph meter calibration

Torrent Pharma,

2 4825

what is mean by 21 cfr

1 6663

Un-Answered Questions { Chemistry }

Describe the process of Actinium extraction from its primary sources and how it's obtained for various applications.

589

Describe the historical significance of Protactinium's discovery and its naming.

589

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

4160

Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

1747

How tripod is used?

1088

write short note on steroids,terpenes,prostagladins,and phospholipids.

6314

What is the application of hardness date in environmental engineering practice?

1346

how you start the solubility study?

772

Why are olefins (alkenes) good monomers for polymerization reactions? : Polymer Chemistry

1335

Why is acetone used for cleaning viscometer?

1308

Why be is not soluble in liquid ammonia?

1046

Do all explosions produce carbon dioxide or carbon monoxide?

1060

Actinium is part of the actinide series. Could you explain the significance of this series and its placement in the periodic table?

559

In pickling process of titatium with HCL . how to know if the acid is not effective after pickling several batch. is there any test to know it. (not practically)

1620

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

1094

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