Acids and Bases quizs NM

What color does litmus paper turn when an acid is dissolved in water?

• Red

• Green

• Yellow

• Blue

What are bases primarily used for?

• Making soaps, detergents, and cleaning agents.

• Creating acids for chemical reactions.

• Enhancing the flavor of food.

• Preserving fruits and vegetables.

What is the pH range of bases?

• pH less than 4

• pH between 4 and 7

• pH equal to 7

• pH greater than 7

What is the effect of dilution on the pH of a strong base?

• Dilution of a strong base will increase its pH, moving it further from neutral.

• Dilution of a strong base will decrease its pH, moving it closer to neutral.

• Dilution has no effect on the pH of a strong base.

• Dilution of a strong base will make it acidic.

What is the relationship between pH and hydrogen ion concentration?

• As hydrogen ion concentration increases, pH decreases.

• As hydrogen ion concentration increases, pH increases.

• pH has no relationship with hydrogen ion concentration.

• pH increases as hydrogen ion concentration remains constant.

Do bases turn blue litmus paper red?

• True, bases turn blue litmus paper red.

• False, bases turn red litmus paper blue.

• True, bases do not affect litmus paper.

• False, bases turn blue litmus paper green.

What does a higher concentration of hydroxide ions indicate about a base?

• The base is weaker.

• The base is neutral.

• The base is stronger.

• The base has no effect on pH.

Strong Acids

• Hydrochloric acid (HCl)

• Acetic acid (CH₃COOH)

• Sodium hydroxide (NaOH)

• Calcium carbonate (CaCO₃)

What happens when a base is added to water?

• A base will release OH^- ions into the water.

• A base will absorb H⁺ ions from the water.

• A base will increase the temperature of the water.

• A base will turn the water red.

What is a strong acid?

• A strong acid is one that completely dissociates in water, releasing all of its hydrogen ions.

• A strong acid is one that partially dissociates in water, releasing some of its hydrogen ions.

• A strong acid is one that does not dissociate in water at all.

• A strong acid is one that has a high pH value.