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

Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?

Ranbaxy,

3024

Q1. Why did you enter the field of chemistry? Q2. What has motivated you to take chemistry as your professional subject and have you motivated anyone towards your field?

2353

What are the differences between GC and HPLC?

1 15301

Why do we need GC instead of HPLC? or Why do we need HPLC instead of GC?

4 13341

What is linearity in HPLC and how will you test?

1 20081

Which charcoal is used to decolourise the raw sugar?

Maxim Pharmaceuticals, MSN Pharma, Reddy Labs,

2 11692

what is the difference between polarimeter lamp and ir lamp

3572

what is ppm?how to prepare 75 ppm?

Bureau Veritas,

6 14451

What is the difference of time between two consecutive injections in HPLC?

Nectar Lifesciences,

2 11173

what is difference between IR lamp and polarimeter lamp

Raks Pharma,

2 10068

Why dissolution test is not performed in all of the products

Biocon, SDD,

2588

why we need to do karl ficher fector ?

Reliance,

2 12694

The densest liquid is. .(A)kerosene. (B)water. (C)mercury. (D)oil

Hetero,

4 7658

Why we are use 0.005M Sulphuric acid, in control of absorbance performance test UV Spectrophotometer calibration

Cipla, Reddy Labs,

2 16510

how to prepare the 0.001M tio2

2441

Un-Answered Questions { Chemistry }

what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

10070

describe the lewis dot structure of Mg2+?

12059

[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

851

What is molality?

1036

Explain what is an oxidizing agent?

1121

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

2233

How can I develope method of dissolution by HPLC OR UV

2457

why athanol-water mixtuere have maximum viscocity in wt% 40?

1781

How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

2441

Explain how do you extract ephedrine from a mineral block?

1069

How will you calculate how many moles of glucose present in 320 ml of 5.0 m of glucose solution?

1171

How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2617

GIVE FTIR SAMPLING ASSESORY NAME.

2567

What is viscosity-coefficient of a liquid?

1488

What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

2763

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