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

During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.

3079

As per X-ray Fluorescence theory, when material particle is irradiated with X-ray the electron of innermost orbital of that element atom is exited and emits outside of the atom as photoelecrons, living behind a hole in innermost orbital . This hole is filled by outer orbital electrons. The question is that finely what happens to that photo electon which is emitted outside of the atom?

Grasim,

1 4243

In testing of Cement the formula for water requirement for setting time is as below- Water required for setting time = NC x 0.85 The question is that what is the logic of 0.85 in this formula??

Grasim,

2436

if two miscible liquids are each found to boil at the same temperature, could you safely conclude that they are identical?

2 16116

what is the formula of petrol

4 6713

what is the formula of diesel,petrol & CNG too?

NTPC,

10 37886

what are transitional elements?

1 3860

what are the uses of hydrogen?

1 4092

what is nascent hydrogen?

1 9159

Shall i get the model question papers for junior lecture of Andhra pradesh

Mylan,

2797

what is method development parameter in HPLC method development

GVK,

6 44926

How to calculate LOD & LOQ in HPLC Validation Method

Dr Reddys, GSK GlaxoSmithKline, Reddy Labs, Reliance, UIS,

14 116929

Why forced Digradition Study is done

6 14439

What is reaction takes place when water content analysis is done

2 10794

How are PDA Detector work in HPLC

Agilent,

7 42793

Un-Answered Questions { Chemistry }

Any one is alembic pharmaceutical ltd. On starting to job ?

1684

Explain the ionic equation for hcl-naoh?

1039

What is the accepted microbial load in APIs as per USP.........?

2515

how you establish the LOQ?

800

how to set sample and standard concentration in RS method?

913

Difference between the quantitative analysis and qualitative analysis?

1188

If vendor having more imp than monograph then how to proceed? and how to set spec?

938

What is titration?

1120

if identification threshold crosses the limits then what next step?

877

Why titration in which hcl and h2so4 is use?

1076

What are the factors which affect corrosion? : Electrochemistry Corrosion

927

What is protein - according to chemistry?

1194

for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

6076

how to prepare the 0.001M tio2

2396

Explain the molar mass of chlorine?

1035

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