2.a. Draw the most stable chair conformation of the following molecule, and build a molecular model. Use a yellow tetrahedral atom for the sulfur atom, purple for bromine, and include

the lone pairs on sulfur i.e. the paddle-shaped things. If you're using a different kit, you may use single bonds to represent them. For the methyl groups, you may just use a single carbon atom to represent them. (6 marks) b. You were asked to perform an SN2 reaction on the molecule.When you obtained the product, it was not the expected product. Instead, you obtained another. Explain, with a mechanism, how the obtained product wasformed. Your model might help. (6 marks) (Hint: Why were you asked to include lone pairs on the sulfur?What can they do?)