This round containing aptitude and technical questions. Where you have to know the basic concept of chemical engineering for technical ones.

In a technical round, they were asking about my good hand on subjects. So I tell them heat transfer and mass transfer. As the company is core and manufacturing chemicals. Now they were asking a question from the heat exchanger and I have to solve it after that they had a few quick queries related to solution and checking my concept as well. Then they were asking questions from the distillation column and its related conceptual queries. Next coming to my CV where I have mentioned some projects so they were asking questions from it. There was no additional round of HR as I was the only one selected for interview.