Pharma interview questions and answers – For Formulation production and R&D jobs:

Pharma interview notes:

We have already provided department wise pharma interview question and answers. Also provided qualifying exam papers for interview. Here we covered some more interview Q&A. these notes are also useful for interview. We are dedicated to provide some more interview questions as shown below in the near future. We also provide departmental wise interview notes continuously. Following Q&A are belongs to pharmaceutics which are useful for the production and R&D jobs.

What is corrosion?

It is a metal deterioration process. Due to chemical or chemical reactions or environmental interactions with surface metal, metal surface is gradually destructed. It is an unwanted process. Corrosion leads to machinery damage, product contamination and replacement of damaged machinery increase economic burden to the plant. Corrosion should be avoided by taking preventive measures.

What is passivation?

It is a procedure which makes the stainless steel more rust resistant by reducing the chemical reactivity of surface. Usually citric acid or nitric acid is used to do this process. It removes the free iron from the stainless steel surface. A protective oxide layer will be formed with inert in nature. This layer will less likely react with chemicals or air in the environment. If more layer is formed It will more resistant to corrosion less reactivity with chemicals.

What is the difference between dry bulb and wet bulb temperatures?

These are the temperatures useful to find the state of humid air.

The dry bulb temperature and wet bulb temperature is known as “air temperature” and “adiabatic saturation temperature” respectively.

Dry bulb temperature measured using a thermometer, bulb of the thermometer will be exposed freely in the air. While measuring the wet bulb temperature, bulb will be wrapped in a wet muslin cloth.

Pharma interview notes

What are azeotropes?

Azeotropes are also known as constant boiling mixtures. It is a mixture of liquids that act as a pure liquid having a constant boiling point. The boiling point may be higher or lower than individual component in the mixture’s boiling point. Azeotropes contains same composition of components in both liquid and vapour phase.

For eg:

water boiling temperature : 100 0C,

Ethanol boiling point : 78.3 0C

When a mixture of liquid composed 95% water and 5% ethanol by volume. This azeotrophic mixture will constantly boil at 78.2 0C. By using boiling method or simple distillation, we can not separate water and ethanol from this azeotrophic mixture.

If the mixture contains two liquids, is known as binary azeotropes. If it contains three liquids, it is known as ternary azeotropes.

Mention a few methods to enhance the solubility of poorly soluble drugs?

Various methods are used to enhance the drug solubility are as follows

– Particle size reduction

– Drug salt formation

– Solid dispersion

– Preparing Nano suspension

– Using surfactants

What is lyophilisation?

It is also known as freeze drying technique. In involves following steps

– Freezing: In this step, sterilised partially stoppered containers (drug+ excipients+ solvent) placed in the  freeze drying chamber.

-Primary drying(Sublimation): To sublimate water, pressure is reduced and heat increased. Ice crystals directly converted to vapour bypassing the liquid state. 95% water removed in this phase.

-Secondary drying (Desorption): Remaining bounded water removed in this phase. Temperature is increased more than the primary drying temperature. Then the vacuum is broken and filled with inert gas and sealed.   

This technique is used to preserve the biodegradable materials.

pharma interview notes which are not covered in the previous posts.
What is annealing?

Annealing is also known as slow freezing. When some compounds (ex. Amorphous compounds like mannitol) will not complete crystals. In this case, annealing is used. After forming the crystals, temperature is cycled. (Like -50 C to -30 C for few hours then back to -50 C). This process helps to form larger crystals.

What is osmosis?

It is a phenomenon. When dilute solution and concentrated solution separated by a semipermeable membrane. The  solvent passes from dilute solution to concentrated solution. This pressure is known as osmotic pressure.

Any fluid is injected into the body should be isotonic in nature. If hypertonic fluid injected into the body, it crenation of blood cells. If hypotonic fluid injected into the body, solvent passes in to blood cells causes haemolysis.

Mention a few solubility terms?

Very soluble- 1 part of solute soluble in less than 1 part of solvent

Freely soluble  -1 part of solute soluble in 1-10 parts of solvent

Soluble – 1 part of solute soluble in 10-30 parts of solvent

Sparingly soluble – 1 part of solute soluble in 30-100 parts of solvent

Slightly soluble – 1 part of solute soluble in 100 -1000 parts of solvent

Very slightly soluble – 1 part of solute soluble in 1000-10000 parts of solvent

Practically insoluble – 1 part of solute soluble in more than 10000 parts of solvent

Related: Clinical trials overview

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How to find pharma jobs –Part 2:

Find pharma jobs:

This is the continuation of How to find pharma jobs part 1. This post briefly discuss the ways to find pharma jobs. We have covered almost all the ways to find a pharma jobs. We have also provided the website links for easy access.

C. Online- Websites, Email:

Technology has improved. Nowadays there is a lot of ways to know the pharma recruitment posts. 10 years this is not the situation. Different types of websites are available in the internet. Here I am providing the 4 major/ types of websites mentioned here.


Number of different pharmaceutical related groups or pages are maintained in the Facebook. Most of these groups are started eagerly but not maintained properly on time basis. Our website supported Facebook page named “Pharma recruitment news” provides job related posts published frequently to find the pharma jobs. You can like this page “Pharma recruitment news.

According to my knowledge following groups/ pages updates vacancies related posts daily.

srinipharmacy jobs:  v inform u perform job confirm: This is a public group. Nearly 65 thousand members joined in this group. This group is especially useful for those people  who are looking for  a job change or for a fresher job. You can join V inform U perform group to find the pharma jobs.

PHDp (PHARMA HEALTHCARE DISCUSSION) Platform: This is a closed group. I think this is a group which is known to every person related to pharma industry. It is a general group but also we can know the different pharma recruitment posts uploaded by the different group members. It is a group with more than 1.2 lakh members, biggest pharma group to find pharma jobs as well as other information. You can request to join this group here.

Other several groups are present in the Facebook but these groups are most suggestible groups.

Related: Offline ways to search pharmaceutical jobs

2. Linkedin:

It is a professional website with professionals. You have to create account like other social networking sites to use the website. Request/ask any information from the senior professional related to your career. You can’t expect positive response from every professional you message. You may take their contact number also if they give. To get a positive response, you should have a little knowledge about their company or person (Like same college/other colleague in the same company etc.).

Majority of times, nobody will give you direct reference, the simple reason is you are unknown to them. After getting an interview call, if you approach them, they may help you out.  You can also find pharma jobs from job posts provided from other members in your connections.

To get more recruitment news, you have to follow the more HR professionals. Upto 30,000 connections you can have in the linkedin.

3. Job portal sites:

There are number of job portals available. Top job portals include naukri, shine, times job, monster or monster india etc. Basic rule for getting opportunity call is completing the 100% profile along with email & phone verification. You have to visit these job portals daily and should modify the information more or less. Dedicated apps available every mentioned above job portals. It’s better to use a app than using a website. Definitely it gives you the interview opportunity whether you are a fresher or experienced. Mail should be checked daily once to know the interview call. Sometimes recruiter informs through mail only if they have more number of vacancies.

 Paid plans are also provided in these job portals by saying that employer’s visibility point of view. But free plan is enough to get a fewer opportunities. If you are required to get more opportunities, you can upgrade your plan for some time during job searching period.

4. Other Individual websites:

A lot of pharma recruitment posts providing website are also available in the internet. Unfortunately, a very few websites updated regularly on time basis. You can find pharma jobs using these following websites.

Visit Pharmawisdom website

Go to pharmatutor website

Visit website

Go to srinivasulu thirumalshetty blog

Visit pharma goal blogspoth

Note: These above mentioned websites are updated regularly at this time for recruitment. The order of websites list may be changed in near future. Every website can not update posts for longer periods if they don’t have a dedicated team for updating the posts. If you observe any job providing websites, recruitment posts may be updated regularly for a particular period of time but not for a long time because it is not an easy task for small websites without having dedicated personal.

5. Company websites:

Most of the times, usually every pharma company website contains a separate section for careers. The organizing way and details given in this section may be different for each website. Some websites only allows you to upload your resume only. Other websites provides vacancies list in their company. Some other websites provide only general hr mail ids. If you come to know any vacancies available, you can apply to get an interview call. You can find pharma jobs from this type of websites.

Every website provides careers section on their website but only a very few companies use and update the posts actively. In case of these websites only, you may have chance to get opportunities.

Here I have mentioned some actively mentioned pharmaceutical company websites.

Visit Thexa pharma careers

View Spira labs careers section

Visit Spectrum pharma website

Go to Sapala organics website

Visit Medibios careers section

Here I have given only 5 websites list. Actively updating company websites list will be provided soon in our website.

6. Email:

In our website, we have provided the location wise list of pharmaceutical companies. It includes address, contact number as well HR mail IDs wherever possible. So you can mail your resume to that HR mail IDs. At particular time, if the company needs work force, you may have chance to get the opportunity call.

7. Whatsapp:

Some of the above mentioned websites also maintains the whatsapp groups. They will post newly updated recruitment posts in their group. If you are interested in any vacancies, you can view the post through the given link.

8. SMS:

Previously, most of the websites provides recruitment posts through the SMS services. Smart phones replaced the feature phones. Whatsapp occupied the position of SMS. So everyone is preferring to maintain whatsapp groups.

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