Photo AI
Which statement is correct about the molecule shown? A - AQA - A-Level Chemistry - Question 10 - 2018 - Paper 3
Question 10
Which statement is correct about the molecule shown? A. It reacts with HBr in an electrophilic substitution reaction. B. It reacts with NaBH4, in a nucleophilic ad... show full transcript
Worked Solution & Example Answer:Which statement is correct about the molecule shown? A - AQA - A-Level Chemistry - Question 10 - 2018 - Paper 3
Step 1
D. It reacts with KCN in a nucleophilic substitution reaction.
Answer
The correct statement regarding the molecule is option D. The molecule contains a bromine substituent, which is a good leaving group. In the presence of KCN, a nucleophilic substitution reaction can occur where the cyanide ion (CN-) acts as a nucleophile and attacks the carbon atom bonded to bromine. This reaction results in the substitution of the bromine atom with a cyanide group, forming a nitrile.
All other options are less favorable or incorrect for this specific molecule due to its structure and functional groups.