<span>Непредельные углеводороды </span>
<span>Алкены </span>
<span>Алкадиены </span>
<span>Алкины </span>
<span>С</span><span>2</span><span>Н</span><span>4 </span><span>Н</span><span>2</span><span>С</span><span>=</span><span>СН</span><span>2 </span>
<span>этен </span>
<span>С</span><span>3</span><span>Н</span><span>6 </span><span>Н</span><span>2</span><span>С</span><span>=</span><span>СН</span><span>-</span><span>СН</span><span>3 </span><span>пропен </span>
<span>С</span><span>4</span><span>Н</span><span>8 </span><span>Н</span><span>2</span><span>С</span><span>=</span><span>СН</span><span>-</span><span>СН</span><span>2</span><span>-</span><span>СН</span><span>3 </span><span>бутен и т</span><span>. </span><span>д</span><span>. </span>
<span>С</span><span>3</span><span>Н</span><span>4 </span><span>Н</span><span>2</span><span>С</span><span>=</span><span>С</span><span>=</span><span>СН </span><span>2 </span>
<span>пропадиен </span>
<span>С</span><span>4</span><span>Н</span><span>6 </span><span>Н</span><span>2</span><span>С</span><span>=</span><span>СН</span><span>-</span><span>СН</span><span>=</span><span>СН</span><span>2 </span><span>или Н</span><span>2</span><span>С</span><span>=</span><span>С</span><span>=</span><span>СН</span><span>-</span><span>СН</span><span>3 </span>
<span>бутадиен и т</span><span>. </span><span>д</span><span>. </span>
<span>С</span><span>2</span><span>Н</span><span>2 </span><span>НС≡СН </span>
<span>этин </span>
<span>С</span><span>3</span><span>Н</span><span>4 </span><span>НС≡С</span><span>-</span><span>СН</span><span>3 </span><span>пропин </span>
<span>С</span><span>4</span><span>Н</span><span>6 </span><span>НС≡С</span><span>-</span><span>СН</span><span>2</span><span>-</span><span>СН</span><span>3 </span><span>бутин и т</span><span>. </span><span>д</span><span>. </span>
