Carbon and its Compounds PDF
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This document covers the structures and formulae of saturated carbon compounds. It details the process of drawing electron dot structures for compounds such as ethene and ethyne.
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The electron dot structure for ethene is given in Fig. 4.7. Yet another compound of hydrogen and carbon has the formula C2H2 and is called ethyne. Can you draw the electron dot structure for ethyne? Ho...
The electron dot structure for ethene is given in Fig. 4.7. Yet another compound of hydrogen and carbon has the formula C2H2 and is called ethyne. Can you draw the electron dot structure for ethyne? How many bonds are necessary between the two carbon atoms in order to satisfy their valencies? Such compounds of carbon having double or triple bonds between the carbon atoms are known as unsaturated carbon compounds and they are more reactive than the saturated carbon compounds. Figure 4.7 Structure of ethene 4.2.2 Chains, Branches and Rings In the earlier section, we mentioned the carbon compounds methane, ethane and propane, containing respectively 1, 2 and 3 carbon atoms. Such ‘chains’ of carbon atoms can contain many more carbon atoms. The names and structures of six of these are given in Table 4.2. Table 4.2 Formulae and structures of saturated compounds of carbon and hydrogen No. of C Name Formula Structure atoms 1 Methane CH4 2 Ethane C2H6 3 Propane C3H8 4 Butane C4H10 5 Pentane C5H12 6 Hexane C6H14 64 Science 2024-25
