I dropped chemistry because I knew I had no chance of getting a 'C', leave alone an 'A' or 'B' in it. There is just to much rote learning (Rata) in chemistry (again, this is just based on my experience).
With respect to your experience, I'm going to have to disagree with your stance.
Chemistry at A Levels is a lot more than rote learning. You need to learn a select few things, but that's about it. And, mind you, it's not a lot. There's
logic behind every reaction, behind every thing. Behind why ice and water have different densities. If your teacher is making you memorize these things, you wont only struggle in Chem, you'll struggle in everything. Chem, for me, was a beautiful subject. It made me understand a lot of things at a molecular level. It was also the easiest A I had, and, mind you, all my subjects were accelerated.
But yeah. I think your teacher is the reason you find it this hard and 'no chance of getting a C level'.
So I CAN get admission in a paki university without taking chemistry?
Also, are three subjects enough to get admission abroad with 100% scholarship? (ofc co-curricular activies+sat score+writing skills matter)
Yeah. But not in Engineering.
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Most foreign uni's don't even need your A Level grades when you apply. You just need to pass the subjects. Unconditional admissions.
UK Admissions and a few other places are conditional and you need certain grades for them. They require 3 subjects, mostly. Sometimes, rarely, 4. But, scholarships have a lot more to do than just A Levels grades. If you want more information, come and ask in the 'Studying Abroad' thread and I'd be more than happy to help you.