Draw the skeletal formula for 2-methylbut-1-ene.
State the precise conditions required for acidified manganate(VII) ions to react with 2-methylbut-1-ene in this way.
Name the reaction type occurring to the functional group in 2-methylbut-1-ene in the reaction in (b)(i).
Draw the structural formula of X.
Describe a chemical test and the expected observation(s) that would confirm the presence of the carbonyl functional group in Y.
The infra-red spectrum of 2-methylbut-1-ene is shown. Predict two major differences that would appear between the spectra of $Y$, $\text{CH}_3\text{CH}_2\text{COCH}_3$, and 2-methylbut-1-ene. Give reasons for your predictions. Your response should refer only to the part of each spectrum above $1500\,\text{cm}^{-1}$.
Propanoic acid, $\text{CH}_3\text{CH}_2\text{CO}_2\text{H}$, is reduced by $\text{LiAlH}_4$. Write an equation to show this change. Use $[\text{H}]$ to represent one hydrogen atom from the reducing agent.
Name the organic product formed in this reaction.
Organic compound $W$ is an ester and a structural isomer of propanoic acid. State the molecular formula of $W$.
Draw one possible structure of $W$.