organic chemistry

123456789101112131415161718192021
Across
  1. 2. main constituent of natural gas
  2. 6. a reaction needs UV light
  3. 11. CnH2n+1COOH
  4. 13. a reaction in which a H in an alkane is replaced by a Cl atom
  5. 16. CnH2n+2
  6. 17. a familiy of similar compounds with same general formula and functional group
  7. 18. the molecules used to make natural polymer with amide link
  8. 21. natural polymer with amide link
Down
  1. 1. type of polymerisation using alkenes
  2. 3. molecules contain C and H only
  3. 4. the property of how easily a liquid evaporates
  4. 5. a reaction has only one product formed
  5. 7. type of polymerisation to make PET and nylon
  6. 8. small molecules used to make polymers
  7. 9. the process to make ethanol from glucose
  8. 10. 可生物降解的
  9. 12. CnH2n+1OH
  10. 14. CnH2n
  11. 15. molecules with same moleular formula, but different structural formulae
  12. 19. the name of process to separate pertroleum
  13. 20. a reaction has a larger molecule and a small molecule(H2O) formed