Chemistry Revision PDF

CHEMISTRY REVISION 1. State one disadvantage of using flower extracts as acid -base indicators 2. Name the indicator in the lab that can be used to measure the pH of lemon juice 3. Differentiate between strong and weak acids 4. Charcoal is a form of impure carbon. Name two other allo...

CHEMISTRY REVISION 1. State one disadvantage of using flower extracts as acid -base indicators 2. Name the indicator in the lab that can be used to measure the pH of lemon juice 3. Differentiate between strong and weak acids 4. Charcoal is a form of impure carbon. Name two other allotropes of carbon 5. Define chemistry 6. List four branches of chemistry 7. Define the following terms a)mixture b)Compound c)Element d)Atom e)Molecule d)atom 8. State two properties of solids and liquids 9. What is a non conductor 10. Define the following terms a. Drug 11. Name three commonly abused drugs 12. List the three apparatus that are used to measure accurate volume 13. Give the use of the following apparatus a. Thistle funnel b. Separating funnel c. Dropping funnel 14. Give the most suitable method of separating the following mixtures a. Water and ethanol b. Kerosene from water c. Colored pigments d. Iodine from a mixture of sand and iodine e. Iron fillings from sulphur powder 15. Give three differences between a luminous and non luminous flame