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

Which Zone of our country like conducting of Stability studies(Accelerated & Long term stability studies)as per ICH guidelines.

4 13492

Can a Nascent Hydrogen be used for fuel cell without damaging the equipment and if so how good would it be compared to other type of hydrogen.

2186

what is difference between assayand potency

Hetero,

4 12567

What is the difference between GSC & GLC?

3 26050

pda detector mechanism?

DKR, Teva Pharmaceuticals,

1 3968

Three products in gaseous form that is obtained in fractional distillation of petroleum.

1 3100

in uv visible spectroscopy calibration why we are using potasium dichromate and tolune

Reddy Labs,

4 10012

Which halogen element is used in halogen light?

1 4340

why in hplc peaks are in positive side(it means upside) not in negative side?

3 11096

give clarity of linearity and range in method validation

2422

how do we get usp reference standard potency?

Ind Swift Laboratories, MSN Pharma,

1 4333

what is the origin to prepare standard operating procedure

2347

why we are using sodium,potassium phosphates for mobile phase preparation?

1 10651

why water factor is near about 5.0 in kf titration?

Claris Lifesciences, Indchemie Health Specialities,

3 14038

Why 1800 ml of dissolution media used In Carbamazepine ER USP Tablets But other drug only 900 ml Media Used ?

Torrent Pharma,

1 5487

Un-Answered Questions { Chemistry }

Write the equation of photosynthesis?

1124

Principle of single pan analytical balance

5145

Differentiate between modern periodic table and mendeleevs table?

1175

WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

2142

For water content determination, if the material is insoluble in methnaol and ethylene glycol mono methyl ether, what other diluent can we use.

2001

Protactinium-233 is used in the thorium fuel cycle. Explain how this cycle operates and its potential benefits in nuclear energy production.

683

we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

1874

Explain the dipole moment direction for methanol?

1128

what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3671

acceptance criteria for lod & loq by standard deviation of response and slope??

2596

how much mass should be there in volumetric flask while in preparation of sample for assay?

2588

if rsd failed then what require to do?

847

State beer-lambert’s law.

1151

how you start RS method development when for new product?

729

Define Vulcanization?

1177

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