carboxylic Acids

Question 1

what mechanism is used when reducing aldehydes and ketones back to alcohols

Answer 1

nucleophillic addition

Question 2

what is an example of reaction of carbonyl

Answer 2

nucleophillic addition of hydrogen cyanide

Question 3

what is bradys reagent used for

Answer 3

aldehydes and ketones
if one present , then it will form a bright orange precipitate

Question 4

what is tollens reagent used for

Answer 4

distinguish between aldehyde and ketone
oxidises aldehyde to form A silver mirror precipitate

Question 5

what is the solubility of carboxylic acids

Answer 5

polar molecules , so small carboxylic acids are soluble in water as they can form hydrogen bonds with the water molecules

Question 6

can carboxylic acids dissociate

Answer 6

yes , they dissociate as they are weak acids so break up into carboxylate ion and a h+ ion

Question 7

what is formed when a carboxylic acid reacts with a carbonate

Answer 7

forms a salt, co2 and water

Question 8

what forms when a carboxylic acid reacts with a metal

Answer 8

forms a salt and hydrogen gas

Question 9

what is formed when a carboxylic reacts with a base

Answer 9

it is neutralised to form salt and water