halogenoalkanes

Question 1

what is a halogenoalkane + why do they have a polar nature?

Answer 1

halogenoalkane = C - X bond , where X is a halogen (g7)
polar bc the halogen is more electronegative than the carbon
forming partially positive/negative charges

Question 2

what are nucleophiles + give 3 examples

Answer 2

nucleophile = positive liking, they donate a pair of electrons

:CN-
:NH3
:OH-

Question 3

what is nucleophilic substitution commonly used for

Answer 3

to produce alcohols or amines from a halogenoalkane
only for 1º and 2º halogenoalkanes