Chapter : 6. Carbon and Its Compound
36. Catenation : It is a property due to which carbon can from bonds with other atoms of carbon. Carbon shows the property of catenation to maximum extent because it is small in size and can form strong covalent bonds.
37. Tetravalency of carbon : Carbon has four valence electrons. It can share four electrons with other atoms of carbon as well as oxygen, hydrogen, nitrogen, sulphur and halogen.
38. Large number of organic compounds : They are due to tetravalency of carbon and property of catenation.
39. Vital Force Theory : It was proposed that ‘vital force’ is necessary for formation of these organic compounds. They can only be obtained from living organisms.
40. Preparation of First Organic Compound in Laboratory : In 1828, Wohlar prepared first organic compound urea by heating ammonium cyanate by isomerisation reaction.
37. Tetravalency of carbon : Carbon has four valence electrons. It can share four electrons with other atoms of carbon as well as oxygen, hydrogen, nitrogen, sulphur and halogen.
38. Large number of organic compounds : They are due to tetravalency of carbon and property of catenation.
39. Vital Force Theory : It was proposed that ‘vital force’ is necessary for formation of these organic compounds. They can only be obtained from living organisms.
40. Preparation of First Organic Compound in Laboratory : In 1828, Wohlar prepared first organic compound urea by heating ammonium cyanate by isomerisation reaction.
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