What is the correct order of pKa values of the following acids?

Friedel-Crafts benzoylation of benzene gives ____

What is the common name of butanal?

Acidic hydrolysis of ethyl benzoate directly gives benzoic acid.

Benzoic ethanoic anhydride on hydrolysis gives ______

Which of the following reagents does not reduce the CO group of carboxylic acids to CH2 groups to form alcohols?

What is the correct order of reactivity of the following towards nucleophilic addition?

Which of the following carboxylic acids is not used in the manufacturing of soaps?