When $X$ is treated with sodium metal, a colourless flammable gas is produced. What does this outcome tell you about the functional groups that could be present in $X$?
No reaction occurs when $X$ is treated with sodium hydrogencarbonate, $ ext{NaHCO}_3$. What does this outcome tell you about the functional groups that could be present in $X$?
When $X$ is shaken with aqueous bromine the orange colour is removed. What does this result tell you about the functional groups that could be present in $X$?
Draw the displayed formulae for each member of these two stereoisomeric pairs.
The four isomers of $X$ shown below exhibit two forms of stereoisomerism. State the type shown by each pair. pair 1 .......................................................... pair 2 ..........................................................