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From the Organic chemistry lectures, I got an A in my 1&2 class. May you please provide lectures for Biochemistry? That would be so...

Organic chemistry is one of the hardest parts of chemistry...very unfortunate that there are no exercises, quizzes, or tests. I haven't yet encountered this kind of lack of practice for an entire unit.

Learn about alcohols, ethers, epoxides, and sulfides in organic chemistry with Khan Academy's comprehensive resources.

Khan Academy offers free science courses for class 11 students in India.

Explore Khan Academy's physics resources, including videos, tutorials, and practice exercises.

Khan Academy offers science courses with practice exercises, instructional videos, and a personalized learning dashboard.

Learn chemistry with Khan Academy's comprehensive lessons, covering topics from atomic structure to chemical reactions.