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As you go down group 1, the reactivity increases. This is because each element has only one electron in their outer shell, so need to lose this electron in order to react. As you go down group 1, the numb...

Methane is a gas made up of 1 carbon atom for every 4 hydrogen atoms. The central carbon atom forms covalent bonds with these 4 hydrogen atoms (they share an electron each), and this sharing completes the...

Chlorine has a higher electronegativity, but as it has a large atomic radius the electron density is spread out over a large area. This means that the electron density is too low to form proper hydrogen b...

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Heated under reflux with an acid catalyst such as H3PO4 or H2SO4

3-methylpent-1-ene

E-3-methylpent-2-ene

Z-3-methylpent-2-ene