26 12 Look at the diagrams. They show the displayed formulas of some fats and oils. Formula A
H
H
H
C
H
H
H
H
C
C
H
H
C
C
H
C
C
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
C
C
C H
C
H
H
H
C
C H
H
H
H
H
H
H
H
H
H
C
C
O
H
H H C
C
C
H
H C
H
H
H
H
H
H
H
H
H
H
C
C H
H
H
O
C
C H
H
C
C
C H
H
H C
C
C
C
H
H
H
H H
C
Formula C H
H H
H
O C
C
C O
C
C
C
C
C
H
C
H C
H
C
H
C
H
C
H
H C
C
Formula B H
H
C
C
H
H
H
O
C O
H H
C H
H
H
(a) Which formula is unsaturated? Explain your answer. ................................................................................................................................................... .............................................................................................................................................. [2] (b) Fats and oils can be split up by saponification. Explain what happens during saponification. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2]
Š OCR 2015