Option A is incorrect because there are many organic compounds which does not contain hydrogen atom like Tetrachloromethane (CCl₄), Phosgene (COCl₂) e.t.c.
Option C is incorrect because many organic compounds are found in soil, rocks, mountains particularly the fossil fuels e.t.c.
Option D is also incorrect because organic compounds can be synthesized. Example is the drug store in your town.
Option B is correct because organic compounds with different functional groups have different chemical and physical properties.
