1. Give the structural isomers (name & diagram) for the compound C6H14.(5 marks)CH3CH3HexaneCH3CH3CH3CH32,2-dimethyl-butaneCH3CH3CH33-methyl pentaneCH3CH3CH3CH32,3-dimethyl-butaneCH3CH3CH32-methyl pentane2. Name three chemical or physical properties common to alkanes.(3 marks)Three chemical or physical properties common to alkanes are they are insoluble in water, have weak intermolecular forces (Van Der Waal’s) and have low boiling points.
3. What are alkyl radicals (groups)? (3 marks)Alkyl radical groups are formed when an alkane loses a hydrogen atom and they become monovalent radicals, the compound will have an unpaired electron and the compound is called an alkyl radical.4. Give the name and chemical formula of the simplest aromatic hydrocarbon. (2 marks)Benzene (C6H6)5. Give a synonym for an unsaturated hydrocarbon.(1 marks)Alkynes/Alkenes6. What is the difference between the “cis” and “trans” isomers?(2 marks)Cis isomers atoms are attached to the same side of the double bond whereas in Trans isomers the atoms are attached to opposite sides of the double bond. 7. State whether the following are primary, secondary or tertiary alcohols?(3 marks) a)b) CH3c)CH3CHCH3OHSecondaryCH2CH2CH2OHPrimaryCH3CCH3OHCH2CH3Teritary
8. What is the difference between a saturated and unsaturated hydrocarbon? (2 marks)Saturated hydrocarbons have single bonds between the carbon and hydrogen atoms (Alkanes) whereas unsaturated hydrocarbon have double or triple bonds between the carbon and hydrogen atoms (Alkynes/Alkenes)9. What is a polymer? 9. What is a polymer? (2 marks)A polymer is a chemical compound composed of smaller units know as monomers that are bonded together in long repeating chains. 10. What do the following stand for?
You've reached the end of your free preview.
Want to read all 11 pages?