Leaving Cert Chemistry - Organic Chemistry

Crossword

Click on a number in the grid to see the clue or clues for that number.
If you are stuck, you can click on "Hint" to get a free letter. You will lose marks every time you get a hint.
When the crossword is complete, click on the "Check" button.
Best of luck!
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Across:

1. An aromatic compound (7)
5. This organic family contains an OH group (7)
6. Energy is got from burning this (4)
7. Same chemical formula, but different structural formula (6)
8. Used to colour materials (3)
10. This organic family contains a double carbon-carbon bond (6)
12. Polychloroethene is the new name for this substance (3)
15. Found under ground and put into fires (4)
16. Changes colour depending upon the pH (9)
17. Chemical symbol for manganese (2)
18. These are involved in sharing electrons (4)
19. Oil ___, found in the North Sea (3)

Down:

1. Chemical symbol for bromine (Br)
2. This test is carried out on athletes (4)
3. Chemical symbol for chlorine (2)
4. A useful product made from fat (4)
5. A hydrocarbon containing a triple bond (6)
9. Name of saturated organic compound (6)
11. This is formed by the action of yeast (7)
12. A compound containing many repeating units (7)
13. Chemical symbol for calcium (2)
14. A name of a liquid fat (3)
15. Chemical symbol for chromium (2)