کاربوکسلک تیزاب

Ethanoic acid is the main acid in:

• 1 Milk
• 2 Vinegar
• 3 Lemon juice
• 4 Tea

Carboxylic acids react with sodium carbonate to release:

• 1 Ammonia
• 2 Carbon dioxide
• 3 Hydrogen
• 4 Oxygen

Reaction of an acid with an alcohol gives an ester and:

• 1 Hydrogen
• 2 Oxygen
• 3 Carbon dioxide
• 4 Water

Esters are often responsible for:

• 1 Fruity smells
• 2 Colours of metals
• 3 Bitter taste
• 4 Salty taste

Soap is made by the alkaline hydrolysis of fats, called:

• 1 Saponification
• 2 Hydrogenation
• 3 Fermentation
• 4 Esterification

The functional group of an ester is:

• 1 -CO-
• 2 -COO-
• 3 -OH
• 4 -CHO

Methanoic acid is found in:

• 1 Vinegar
• 2 Ant stings
• 3 Tea
• 4 Milk

Carboxylic acids have higher boiling points than alcohols of similar size because of:

• 1 Ionic bonds
• 2 Stronger hydrogen bonding and dimer formation
• 3 Higher density
• 4 Lower mass