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Chemistry Interview Questions
Questions Answers Views Company eMail

why we use pyridine to determine moisture content of acetonel

Lee Pharma,

2 12858

What impact analysis required for out of calibration and how to proceed

Aventis,

2 7360

Which type of analysis we have to done uv spectroscopy

 2 8855

From where 16 or 5.545 is derived in theoretical plates calculation formula by USP or JP/BP/DAB and what is meaning of this coefficient and impact in calculation ?

Nectar Lifesciences,

2 11388

Does we get same value by LOD and KF titeration of a single sample

MSN Pharma,

3 6633

Which form of Sucores is harmfull to humans ?

 1808

What is the difference between uplc and hplc

AAU Assam Agricultural University, Hetero,

4 24974

why should mostely use KH2PO4&K2HPO4 in HPLC?

Dishman, GVK,

1 6323

What is meaning of audit trail in hplc

DRL, Lee Pharma, Raks Pharma,

3 23385

i have 5liter 98% h2so4 now, i want to convert it in 92% by adding water....so...howmuch water i have to add ?

Infosys,

2 6109

How we can determine OOT limit in Stability

MSN Pharma,

2 13434

why we are using k2cr207 in uv calibration ? why we r not using kmno4?

Glochem, Sidmak Laboratories,

1 6010

can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

Cipla, XYZ,

1695

WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

Glochem,

1 1977

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

 1683

Un-Answered Questions { Chemistry }

What is kentchin?

582

Why are the titration involving edta carried out slowly towards the end point?

726

For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?

1778

what is the relation between Total organic carbon and Chemical Oxygen demand?

2399

how to qualify the impurity?

307




in which situation ion pair require to use?

267

how require to select dissolution media? what is discrimination?

299

What is phase transfer catalyst?

626

graphaite has higher melting point than fularine

2538

An atom has 18 protons and 22 neutrons. Tell me its mass number?

567

Active Ingredients in septilin ??

1186

what is the indicator used?

576

what is meaning of wet analysis.

5212

Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

1365

What is the difference between volumetric solutions and test solutions

2552

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