Alkynes

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• 1 Sigma bond
• 2 Pi bonds
• Triple bond between 2 carbon atoms
• Unsaturated

Ethyne Addition Reaction

$C_2{H}_2+B{r}_2\to C_2{H}_{2}B{r}_4$

Arenes (very misleading, as they don’t react with bromine water)

• benzene $C_6{H}_6$
• methylbenzene $C_7{H}_8$

Substitution Reaction of benzene with pure bromine ($B{r}_{2(e)}$)

$C_6{H}_6+B{r}_2\to C_6{H}_{5}Br+HBr$, with catalyst

Do not need this (according to pilling god)