The compound menthol has the structure shown.
Some of the carbon atoms are labelled P, Q, R and S.
1
2
3
4
P
Q
R
S
The findings of each group in the class are shown in the table.
Qualitative test | |||
Group |
Add 2,4-dinitrophenylhydrazine |
Warm with Fehling’s solution |
Add PCl5 |
One | ✔ | ✖ | ✔ |
Two | ✔ | ✖ | ✖ |
Three | ✔ | ✔ | ✖ |
Four | ✖ | ✖ | ✔ |
Which group recorded the results you would expect?
One
Two
Three
Four
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