Quiz on Bases and Their Properties

What is a characteristic taste of bases?

• Bitter

• Sour

• Sweet

• Salty

According to Svante Arrhenius, what do bases dissociate to produce in water?

• Chloride ions

• Hydrogen ions

• Hydroxyl ions

• Sodium ions

Which of the following is an example of a base that does not contain oxygen?

• Sodium hydroxide

• Ammonia

• Calcium hydroxide

• Magnesium oxide

What is the main difference between a base and an alkali?

• All alkalis are bases

• Alkalis are always solid

• All bases are alkalis

• Bases are always acidic

What is a strong alkali defined by?

• Complete dissociation

• Less than 30% dissociation

• More than 30% dissociation

• No dissociation

What happens when a strong alkali reacts with carbon dioxide?

• It forms a metal oxide

• It forms water

• It forms a metal carbonate

• It forms a salt

What is the effect of bases on litmus paper?

• Turns blue to red

• No effect

• Turns yellow to green

• Turns red to blue

Which of the following is a use of sodium hydroxide?

• Making vinegar

• Producing soap

• Creating perfumes

• Making sugar

What is a dilute alkali?

• No alkali present

• Low concentration of alkali

• High concentration of alkali

• A solid alkali

What is the reaction called when a base reacts with an acid?

• Reduction

• Oxidation

• Neutralization

• Saponification