Question

2. Define the following terms and give an example for each (5 points): a) Nucleophile b) Electrophile c) Enantiomers d) Copolymer e) Condensation polymer

Answer 1

a) Nucleophile rightwardsdoublearrow The word nucleophile means nucleus loving. Nucleophiles are chemical species that donates an e^- pair to an electrophile to form a chemical bond. eg: OH^- is a nucleophile. b) Electrophile rightwardsdoublearrow The word Electrophile means electron loving. Electrophile are + vely charged or neutral species having vacant orbitals. It participates in a chemical reaction by accepting an e^- pair in order to bond to a nucleophile. eg: Br^+, CH_3^+, etc. c) Enantiomers rightwardsdoublearrow These are the stero isomers. Each pair of molecules are mirror images of each other. eg: are enantiomers. d) Copolymer rightwardsdoublearrow A copolymer is a polymer derived from more than one species of monomer. eg: acrylonitrile butadiene styrene. e) Condensation polymer rightwardsdoublearrow These are the polymers formed through condensation rxn. i.e., small molecules are lost when polymer forms eg: Diacid + Diamide rightarrow Polyamide + H_2 O rightarrow condensation polymers.