Which acid of each pair shown here would you expect to be stronger: ${\mathrm{F}}_3\mathrm{C}-{\mathrm{C}}_6{\mathrm{H}}_4-\mathrm{COOH}$ or ${\mathrm{H}}_3\mathrm{C}-{\mathrm{C}}_6{\mathrm{H}}_4-\mathrm{COOH}$.

Give the structure of the following:

Phthalaldehyde

Give the structure of the following:

$3$-Methylcyclohexanecarbaldehyde
 

Give the structure of the following:

 $3$-methylbut-$2$-enoic acid

Write the IUPAC name of the following structure:

Write the IUPAC name of the following structure:

Give names of the reagents to bring about the following transformations:

 Benzoyl chloride to benzaldehyde
 

Give names of the reagents to bring about the following transformations:

 Benzene to benzaldehyde