Hydrocarbons Crossoword

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Across
  1. 3. The number of bonds around an O in a compound
  2. 5. Fraction that is least volatile
  3. 8. The name of this coumpound CH3CH2CH3
  4. 10. Alkanes and alkenes
  5. 12. This type of component rises during distillation
  6. 15. Vapour loses energy here
  7. 16. A use of alkenes
  8. 18. The number of bonds around a C in a compound
  9. 20. Fraction that is most volatile
  10. 21. Reagent used for oxidation of alkenes
  11. 25. The addition of steam to ethene requires this catalyst
  12. 27. Alkanes undergo this type of reaction
  13. 29. The number of bonds around a H in a compound
  14. 30. A use of alkanes
  15. 31. The addition of hydrogen to alkenes to form the corresponding alkanes requires this catalyst
  16. 32. Structure and bonding present in alcohols
  17. 34. The burning of organic compounds
  18. 35. Fraction used for road paving
Down
  1. 1. Source of methane
  2. 2. System of classifying organic compounds
  3. 4. Source of organic chemicals
  4. 6. Main use of fractions of crude oil
  5. 7. Alkanes and alkenes
  6. 9. Intermolecular forces present between alkane molecules
  7. 11. A reagent used to distinguish between alkanes and alkene in a test tube reaction
  8. 13. A use of alkanes
  9. 14. Class of organic compound
  10. 17. Alkenes undergo this type of reaction
  11. 19. Reaction to convert diesel into gasoline
  12. 22. Successive members of a homologous series differ by this group
  13. 23. Used for industrial separation of crude oil
  14. 24. The addition of steam to ethene produces this product
  15. 26. Product of combusting hydrocarbons
  16. 28. Condition needed for chlorination of alkanes
  17. 33. Molecules with the same molecular formula but different structures