State the name of the substance obtained as the yellow precipitate in this reaction.
Identify the name of $W$.
There are two structural isomers of $W$ that are also carbonyl compounds. Draw the structures of these two isomers of $W$.
Identify the type of reaction occurring in reaction 1.
Identify the reagent for reaction 1.
Complete the mechanism for this reaction. Include the structure of the intermediate formed and all required charges, dipoles, lone pairs and curly arrows.
State which type of isomerism is shown by $X$.
Explain fully why $X$ shows this type of isomerism.
Show that $Y$ has empirical formula $\text{C}_5\text{H}_{11}\text{NO}_2$.
The empirical formula of $Y$ is $\text{C}_5\text{H}_{11}\text{NO}_2$ and the $M_r$ of $Y$ is $117$. Deduce the molecular formula of $Y$, and explain how you reached your answer.