TAQ 5: Assessment criteria 2.1, 3.1, 3.2 and 4.1 Assessment info a) An amine can be formed when 2-iodobutane is heated with ammonia in a sealed tube. i) Provide a full chemical equation for this reaction. Show the structural formula for any organic molecules. ii) Name the organic product formed and draw its displayed structure. iii) Provide a 'curly arrow' mechanism with an explanation for this process. iv) Describe a characteristic test (with the result that would be observed) to show the presence of this amine. b) The amine produced in the above reaction forms as a mixture of two optical isomers. i) Explain the term 'optical isomer' using examples. ii) Draw the 3D structures of the two isomers of this amine. iii) State how you can distinguish between the two isomers. WORD COUNT: Word count Part a) i) and ii): not applicable. Part a) iii): 150 words Parts a) iv): 50 Part b) i): 200 words Parts b) ii) to b) iii): not applicable NOTE: Completion notes: For part a) iii) you should include a diagram for each step of the mechanism and also include an explanation as this is your opportunity to demonstrate your understanding