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

cefoperozone and sulbactam inj. hplc test method

Graviti Pharmaceuticals,

2697

how peak can be sharp in hplc when it is come flat

Graviti Pharmaceuticals,

6 19826

what is Fourier Transform

Graviti Pharmaceuticals, GVK,

3 9825

What is descriminatory disolution medium ?

Cipla, Graviti Pharmaceuticals,

3 10575

what is the difference between loss on drying in ordinary oven technique and vacuum oven technique

Divis Laboratories, Ranbaxy,

4 15875

what is the difference between the Purity and Potency of drug substance

Divis Laboratories, Graviti Pharmaceuticals,

1 11566

what is the difference between LOSS ON DRYING IN ORDINARY OVEN TECHNIQUE AND VACUUM OVEN TECHNIQUE

6 26246

why we are using only lead standard solution for Heavy metals test? what is the purpose of this?

Divis Laboratories,

4 14157

what is the difference between the ordinary loss on drying technique and vacuum oven technique?

Divis Laboratories,

1 8878

what is the difference between gc& hplc. why we r not calculating purity by gc for final products

Biocon, Cipla,

5 17547

what are peak purity,peak purity index,peak thresold

2 18118

1)why use benzophenon,uracil in hplc calibration. 2)why use sucrose in polarimeter calibration. 3)what is S/N ratio, noise and drift in hplc 4)how we can find lod and loq in method validation

1 14868

What is the molarity of a NaOH solution if 32.47ml. isrequired to titrate 0.6013g of potassium hydrogen phthalate?

2 9787

What is (Q) point dissolution?

Cipla, Macleods,

6 26855

Why we are using K2Cr2O7 for control of absorbance in UV?

2 13455

Un-Answered Questions { Chemistry }

What is Band broading effect explain

1889

The reaction of an acid with an alcohol to form an ester and water. What is the process?

1029

What is delay volume?

1399

why do hard water never produce foam when a soap is dissolved?

1048

Can you provide an overview of the properties and characteristics of Protactinium and its placement in the periodic table?

660

why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2307

why xterra column require to use at higher ph?

924

how much time require for day to prepare the ongc exam for evarage student?

3040

Explain the term aliquot and diluent?

1342

why require to do water content for drug product?

842

CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1213

What is paint? : Electrochemistry Corrosion

1050

Normally entropy is expressed as q/T. But, work and heat have same unit. Why can't it be replaced by work?

2260

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

959

Loss of linearity in tkn analysis, possible reasons?

1326

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