a. Benzoic acid, Phenol, Picric acid, Salicylic acid (pka values). b. Acetaldehyde, Acetone, Methyl tert butyl ketone (reactivity towards NH2OH).

Question

Arrange the following in the increasing order of their property indicated:

a. Benzoic acid, Phenol, Picric acid, Salicylic acid (pka values).

b. Acetaldehyde, Acetone, Methyl tert butyl ketone (reactivity towards NH₂OH).

c. ethanol, ethanoic acid, benzoic acid (boiling point)

Answer 1

(a) Picric acid < salicylic acid < benzoic acid

(b) Methyl tert – butyl ketone < acetone< Acetaldehyde

(c) ethanol < ethanoic acid < benzoic acid (boiling point of carboxylic acids is higher than alcohols due to extensive hydrogen bonding , boiling point increases with increase in molar mass)