$(1)$ Complete the following structural formula for a neutral

molecule by adding $H$ atoms to complete the valence of each atom.

Do not introduce any double or triple bonds.

$C-N$

Consider the following model for a neutral molecule:

$(2)$ The compound is classified as a$($n$)$

$(1)$ Complete the following structural formula for a neutral

molecule by adding $H$ atoms to complete the valence of each atom.

Do not introduce any double or triple bonds.

Then write the molecular formula in the order CHO.

The molecular formula $($in the order CHO $)$ is

The compound is classified as a$($n$)$