Science

How can one possible say what you have to study without knowing your future plans? B.Sc is a very generic term.

To be eligible for B.Arch, you should score minimum 50% in class 12th with mathematics as a compulsory subject. Also, to gain admission in this course, you'll have to appear for National Aptitude Test in Architecture NATA conducted by the Council of Architecture, and the score for the same will be taken into consideration for admission.

US is not the best option currently, but Australia job market is also competitive. However, they will allow you to apply for work permit, and you can look for job. It is more flexible than current USA.

Hi Ananthu, scholarships are provided to students by the universities itself, you will be considered for scholarship at the time of admissions either by default, or you have to mention it on your application form. Scholarships are provided on merit basis, so universities will be select based on your marks, overall profile etc.

What you want to ask for? As you are on 2018 and asking for 2028? As we have no update for 2028. You can ask for this year only.

You can but I don't feel it to be a wise decision because B.Pharma is a professional degree grasping in 4 years of your life. If you do M.Sc. then your pharma degree will hold the same place as B.Sc. Chemistry degree will hold. So it is better to go for M.Pharma and then Ph.D.
However, it's just an advice; the final call is yours.
All the best.