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

how calibrate the hplc detector

Cipla, Shraddha Analytical Services,

2 10742

why we use deturium lamp in uv spctrophotometer other than lamps

1 10047

what is iupc name citric acid

3 6721

water is made of?

4 6210

A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?

2 7442

In Force degradation Study Compound is not degrade in any condition , also in higher stress what can i do ?

Alembic,

4 10849

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

2718

2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2224

How to Prepare Dilute Sodium hydroxide solution?

Claris Otsuka,

3 10688

what type of question will ask in the interview of lab chemist.

Godavari Biorefineries, Monginis,

3320

Why we show ammonia vapours to tlc plate?to which compounds?

1 6245

What is the SOP for SOP

JBCPL,

4 10008

Water is made of?

Hetero, Wipro,

1 4887

Why perform dissolution multimedia study in dissolution Development

Cipla, Optimus,

4 20886

what is the purge flow & how to calculate

Granules,

2648

Un-Answered Questions { Chemistry }

In order to avoid the pyridine catalyst use in many synthesis which is harmfull to environment, which catalyst can be used....?

2401

Explain the term aliquot and diluent?

1336

We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

1717

when are the result of sbi clerical come

2436

EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2636

in which situation ion pair agent require to use?

735

Does domestic/household used kerosene oil which is available in blue color (In India) can change its color over the due course of time say 8-10 years if keeping in plastic bottle? If so, in which color it will be turned to change, yellow or transparent or any other color. Please provide me the reply with strong technical approach. Since it has been asked during an interview. Please reply fast. I will be thankful to you if anyone can provide the supporting journals/write-ups/reference to favour of response.

1429

Is it nessesary all multimedia dissolution require descriminatory?

797

Name the three elements which are forms carbohydrates?

1022

Actinium has potential applications in cancer treatment. Could you elaborate on how Actinium-225 is used in targeted alpha-particle cancer therapy?

664

Tell me the common name of the molecule dihydrogen dioxide?

1036

hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.i want sample RESUME,OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com

2335

Discuss the historical significance of Actinium and its discovery in the context of the periodic table.

702

In which situation we require to prepare the standard solution from sample in Related substance method?

777

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

2629

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