13 Halogenoalkanes complete Saga

Halogenoalkanes contain ?

polar bonds

Why do Halogenoalkanes contain polar bonds ?

as the halogens are more electronegative than carbon atoms

In halogen bond is C-X which is x (s+ or s-) (Halogen)

X = s-

Nucleophiles species are ?

'positive liking'

Nucleophiles contain a lone electron pair that is attracted to ?

∂+ / S+ regions of molecules

Common Nucleophiles ?

● CN: - ● :NH3 ● - :OH

What must nucleophiles be shown with ?

e lone electron pair and often a negative sign

Nucleophilic Substitution - reaction mechanism that shows how nucleophiles attack ?

halogenoalkanes

The greater the Mr of the halogen in the polar bond, the ?

lower the bond enthalpy

Nucleophilic substitution reactions can only occur for 1 o (primary) and ?

2o (secondary) halogenoalkanes

When a halogenoalkane is heated to high temperatures under alcoholic conditions What occurs ?

elimination occurs

Elimination reactions can only occur from what type of halogenoalkanes ?

2 o and 3o (tertiary)

Ozone in the atmosphere absorbs ?

UV radiation.