Describe the meaning of structural isomerism.
Name the functional group that occurs in both A and B.
In the boxes, draw the structures of A and B.
A and B are structural isomers with molecular formula $\text{C}_5\text{H}_{10}\text{O}$. They are both straight-chained molecules with only one functional group. Table 5.1 sets out the observations when separate samples of A and B are placed into different reagents.
C is a structural isomer of A and B. C is straight chained and has two functional groups. C shows only one type of stereoisomerism. Table 5.2 sets out the observations when separate samples of C are added to different reagents.
Draw C in the box.
Name the type of stereoisomerism exhibited by molecules of C.
In the presence of a sulfuric acid catalyst, D reacts to produce E and water. Fig. 5.1 shows the structure of E.
Name the functional group found in E.
Identify the reaction type when D reacts to form E.
Draw D in the box.
The infrared spectrum of E is shown in Fig. 5.2. Use Fig. 5.2 and Table 5.3 to predict two differences in the absorptions above $1500\ \text{cm}^{-1}$ for the infrared spectrum of D when compared with E. Explain your answer.
The infrared spectrum of E is shown in Fig. 5.2. Use Fig. 5.2 together with Table 5.3 to predict two differences in the absorptions above $1500\ \text{cm}^{-1}$ for the infrared spectrum of D when compared with E. Explain your answer.