nucleophiles

Question 1

define nucelophile

Answer 1

an atom/group of atoms attracted to an electron deficient centre where it donates a pair of electrons

Question 2

define substitution reaction

Answer 2

halogen leaves and nucleophile takes its place in the molecule

Question 3

explain in words how a nucleophile;. reacts with a haloalkane

Answer 3

1. nucleophile attacks the carbon of a carbon-to-halogen bond because the electron pair on the nucleophile is attracted to the small positive charge on the carbon
2. The electrons in the carbon-to-halogen bind are repelled as the nucleophile approaches the carbon atom
3. the nucleophile bonds to the carbon and the carbon-to-halogen bond breaks. 2 electrons move to halogen forming a halide ion