Update - 30 March 2020
Mr. Prasanna Baddewithana conducts A/L Chemistry classes at Nugegoda, Galle and Kurnegala. He is the most experienced and successful Chemistry tutor in Sri Lanka. With his unique teaching methods and unbeatable results he has proved that.
A/L Chemistry Question paper for 2020 and 2021 students. From Prasanna Baddewithana official facebook page.Chemistry Prasanna Baddewithana Paper 2020.pdf.pdf
2020 A/L Unit 14 - Environment - Part 3 - Acid Rain
Check other parts in Prasanna Baddewithana youtube channel
A/L - Chemistry Energy Science - free video lessons
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