1.1. This question is about the analysis of alcohols.

Alcohol A can be prepared by hydrolysing the halogenoalkane C₂H₅CHBrCH₃ with aqueous sodium hydroxide. The melting and boiling point information of alcohol A and C₂H₅CHBrCH₃ are given in Table 1.1.

Table 1.1 

 Write an equation for the hydrolysis of C₂H₅CHBrCH₃ with aqueous sodium hydroxide. Include state symbols in your answer

1.2. Using the information in Table 1.1, explain how alcohol A can be separated from the products identified in part (a). 

1.3. Describe two chemical tests and their expected observations to confirm the identity of the inorganic product.

1.4. The infra-red spectrum of C₂H₅CHBrCH₃ is shown in Fig. 1.1 with the C–Br bond absorption labelled.

Fig. 1.1 

Using Fig. 1.1 and Table 1.2, predict three main differences that would be seen between the spectra of C₂H₅CHBrCH₃ and alcohol A. 

Table 1.2

1.5. The mass spectrum of (CH₃)₂CHCH₂OH is shown in Fig. 1.2.

Fig. 1.2

 Identify the ion that is responsible for the peak with the greatest relative intensity.