1.1. This question is about hydroxynitriles.

The hydroxynitrile shown in Fig. 2.1 can be prepared from the reaction between propanal and hydrogen cyanide.

Fig. 2.1

Give the IUPAC name of this hydroxynitrile.

1.2. Using 'curly arrows', complete the reaction mechanism shown in Fig. 2.2 for the reaction between propanal and the cyanide ion, CN^–.

Include any lone pairs of electrons and partial or whole charges.

Fig. 2.2

1.3. Name the type of reaction mechanism shown in Fig. 2.2.