chemistry-class-11-unit-13-chapter-02-hydrocarbons-l-2-8-45om7m6-jae

### <Success style="font-size:25px"> Hydrocarbons L-2 </Success>
### <primary style="font-size:24px"> Physical properties of alkanes </primary>
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- First four membres of alkanes are gas
- Next thirteen members $(C_5-C_{17})$ are liquids
- $\ge C_{18}$ are wax like solids
- Alkanes are almost non polar compounds

-    Example - In ethane, electronegativity of C = 2.6 and of H = 2.1

- Dissolve only in non polar solvents $C_6H_6, CCl_4$

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<footer style = "font-size: 18px"> $\rightarrow$ Hydrocarbons $\rightarrow$ <span style = "color:blue"> Physical properties of alkanes </span> $\rightarrow$ Physical properties of alkanes $\rightarrow$ Physical properties of alkanes </footer>

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### <primary style="font-size:24px"> Physical properties of alkanes </primary>
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* Boiling point (b.p.) of different alkanes increase  with increase in molecular mass

* This is due to the intermolecular van der Waals forces which increase with increase of the molecular size or the surface area of the molecule

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<footer style = "font-size: 18px">Hydrocarbons $\rightarrow$ Physical properties of alkanes $\rightarrow$ <span style = "color:blue"> Physical properties of alkanes </span> $\rightarrow$ Physical properties of alkanes $\rightarrow$ Substituition reaction </footer>

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### <primary style="font-size:24px"> Physical properties of alkanes </primary>
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* Boiling point between different isomers

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<footer style = "font-size: 18px">Physical properties of alkanes $\rightarrow$ Physical properties of alkanes $\rightarrow$ <span style = "color:blue"> Physical properties of alkanes </span> $\rightarrow$ Substituition reaction $\rightarrow$ Halogenation </footer>

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### <primary style="font-size:24px"> Substituition reaction </primary>
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* Halogenation

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<footer style = "font-size: 18px">Physical properties of alkanes $\rightarrow$ Physical properties of alkanes $\rightarrow$ <span style = "color:blue"> Substituition reaction </span> $\rightarrow$ Halogenation $\rightarrow$ Oxidation </footer>

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* Mechanism

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<footer style = "font-size: 18px">Physical properties of alkanes $\rightarrow$ Substituition reaction $\rightarrow$ <span style = "color:blue"> Halogenation </span> $\rightarrow$ Oxidation $\rightarrow$ Oxidation </footer>

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### <primary style="font-size:24px"> Oxidation </primary>
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* Combustion

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<footer style = "font-size: 18px">Substituition reaction $\rightarrow$ Halogenation $\rightarrow$ <span style = "color:blue"> Oxidation </span> $\rightarrow$ Oxidation $\rightarrow$ Isomerisation </footer>

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* Controlled oxidation

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<footer style = "font-size: 18px">Halogenation $\rightarrow$ Oxidation $\rightarrow$ <span style = "color:blue"> Oxidation </span> $\rightarrow$ Isomerisation $\rightarrow$ Aromatization </footer>

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### <primary style="font-size:24px"> Isomerisation </primary>
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<footer style = "font-size: 18px">Oxidation $\rightarrow$ Oxidation $\rightarrow$ <span style = "color:blue"> Isomerisation </span> $\rightarrow$ Aromatization $\rightarrow$ Reaction with steam </footer>

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<footer style = "font-size: 18px">Oxidation $\rightarrow$ Isomerisation $\rightarrow$ <span style = "color:blue"> Aromatization </span> $\rightarrow$ Reaction with steam $\rightarrow$ Pyrolysis </footer>

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<footer style = "font-size: 18px">Aromatization $\rightarrow$ Reaction with steam $\rightarrow$ <span style = "color:blue"> Pyrolysis </span> $\rightarrow$ Conformational analysis $\rightarrow$ Thank you </footer>

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### <primary style="font-size:24px"> Conformational analysis </primary>
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<footer style = "font-size: 18px">Reaction with steam $\rightarrow$ Pyrolysis $\rightarrow$ <span style = "color:blue"> Conformational analysis </span> $\rightarrow$ Thank you $\rightarrow$  </footer>