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Structure and Bonding BSc 1st semester

Introduction - Organic is the chemistry of carbon compounds. organic chemistry is a very systematic subject which is based on the structures of molecules and their reactivity. the presence of covalent bonds is the characteristic feature of organic (carbon) compounds.  Covalent Bonding - It was based on the electronic structure of atoms. A covalent bond is formed by sharing of electrons, each atom contributing one or more electrons to form the shared pair or pairs.   The two bonded atoms are held together by shared pair or pairs of electrons, e.g., Covalent bond .   Single bond - Single bond form by sharing of one electron pair is called single bond example as H-H bond. Double bond - Double bond formed by sharing of two electron pairs example as O-O bond. Triple bond - Triple bond form by sharing of three pairs of electron example as N-N bond.   The electrons of the outermost shell of an atom are called valency electrons. (-) always carries a pair of electrons an...