This question is about 2-bromopropane - AQA - A-Level Chemistry - Question 5 - 2020 - Paper 2

The C–Br bond is polar due to the difference in electronegativity between carbon and bromine. Bromine is more electronegative than carbon, which leads to a partial negative charge on the bromine atom and a partial positive charge on the carbon atom.

The reaction mechanism involves the nucleophilic attack of ammonia on the carbon atom bonded to bromine. A curly arrow indicates the movement of electrons from the C–Br bond to bromine, resulting in the formation of a carbocation intermediate. Next, another arrow shows the lone pair of electrons from the nitrogen in ammonia attacking the carbocation, leading to the release of a hydrogen ion and the formation of the final product.

The skeletal formula would typically depict the product, which is an amine derived from the reaction of 2-bromopropane and ammonia. Additionally, a valid use of the product could be as a hair conditioner (or cationic surfactant).