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 8687

PLease give me the list of normal phase hplc column

Micro Labs,

3 7413

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

4248

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

2305

What is the principle of Particle size analysis and zeta potential

2646

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

Hetero,

2 5188

What is the difference between specified impurity and Identified impurity

Glenmark,

3 16201

What is the difference between specified impurity and Identified impurity

Merchant Navy,

1 6070

how do you established the RRF for unknown impurity

Square Pharma,

6 13124

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 10120

What is the temperature

Reddy Labs,

1 8121

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

Celon Labs, Laurus,

2 11383

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

DRL, Laurus,

3691

Which column is more polar, C8 or C18?

Cipla, Glenmark, Laurus, Torrent Power,

6 30382

what is the difference between heavy metals and sulphated ash

Aurobindo,

2 18113

Un-Answered Questions { Chemistry }

Find out how to make artifacts the maxwell boltzmann theory of gases . ps. I don't speak English that well

1578

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

10000

inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

715

What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1601

What is the main difference between ODS1 and ODS2 Hplc column.

5219

What are some common isotopes of Actinium, and how do they differ in terms of stability and uses?

682

Give the principle of potentiometer titration.

1035

What is rs test why we are performing rs test?

1859

what is silicon chip

2107

In rs method development when we are going area normalization method to dilute standard method?

1520

how you fix the limits of impurities?

837

What is german silver?

899

Write the equation of photosynthesis?

1120

what is partion and column chromatography

2392

What is iron ore consists of?

1047

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