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 is maximum pH14. Why does it range from 0-14 only?

IISER,

4 8852

PLease give me the list of normal phase hplc column

Micro Labs,

3 7516

Why purity angle should be less than purity threshold in peak purity

4309

Suppose u have combipack product and u get 2 or more peaks which are other than there placebo then what we can do

2371

What is the principle of Particle size analysis and zeta potential

2695

suppose u got 2 or more maxima in the uv spectrophotometer then what u can do

Hetero,

2 5309

What is the difference between specified impurity and Identified impurity

Glenmark,

3 16401

What is the difference between specified impurity and Identified impurity

Merchant Navy,

1 6170

how do you established the RRF for unknown impurity

Square Pharma,

6 13401

I want analyze my compound at 325 nm so which standard shall i use to calibrate my HPLC system? How i can assure my hplc detector is suitable or not?

AMRI,

3 10295

What is the temperature

Reddy Labs,

1 8214

How we will choose pH of a mobile phase if analyte pKa value is 4

Celon Labs, Laurus,

2 11503

what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

DRL, Laurus,

3751

Which column is more polar, C8 or C18?

Cipla, Glenmark, Laurus, Torrent Power,

6 30647

what is the difference between heavy metals and sulphated ash

Aurobindo,

2 18244

Un-Answered Questions { Chemistry }

Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

1975

What is viscosity-coefficient of a liquid?

1488

how do you make a amine sugar

2430

Define an origin of electrode potential? : Electrochemistry Corrosion

1151

What are the factors which affect corrosion? : Electrochemistry Corrosion

987

Arrange by acidic values : phenol, nitrotolouene and o-cresol?

1150

Which of the above conductivity measured during conductometric titration?

1123

what are the standard methods for HPLC?

2835

what you do when compound having dwel wavelength?

808

How can chemists control which type of polyethylene (ldpe vs. Hdpe) is generated? : Polymer Chemistry

1781

Why does the experimental lattice enthalpy of NaI differ greatly from the theoretical lattice enthalpy?

3474

there is something which we call as the basicity of an acid i wanted to ask is that is there something like the basicity of an alkali if yes than how can we define it?

2115

Explain the function of mitochondria?

1130

Explain what is the chemical formula of detergent?

1049

why we shrink our body during cold

1836

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