Neutralization Reaction Quiz Questions And Answers

1. Which acid and base combination will produce NaCl and H2O?

HCl + NaOH

H2SO4 + NaOH

HNO3 + KOH

CH3COOH + KOH

Positive hydrogen ions from HCl and negative hydroxide ions from NaOH combine to form water. Positive sodium ions from NaOH and negative chloride ions from HCL combine to form the salt sodium chloride (NaCl), commonly called table salt.

Explanation

Positive hydrogen ions from HCl and negative hydroxide ions from NaOH combine to form water. Positive sodium ions from NaOH and negative chloride ions from HCL combine to form the salt sodium chloride (NaCl), commonly called table salt.

2. What is the pH of a neutral solution?

1

7

14

0

Ions are just atoms that have an electric charge on them, so H+ is a hydrogen atom with charge of 1. Even in pure water ions tend to form due to random processes (producing some H+ and OH- ions). The amount of H+ that is made in pure water is about equal to a pH of 7. That's why 7 is neutral.

Explanation

Ions are just atoms that have an electric charge on them, so H+ is a hydrogen atom with charge of 1. Even in pure water ions tend to form due to random processes (producing some H+ and OH- ions). The amount of H+ that is made in pure water is about equal to a pH of 7. That's why 7 is neutral.

3. What is the product of a neutralization reaction between an acid and a base?

Salt

Water

Both Salt and Water

Neither Salt nor Water

In a neutralization reaction, the acid will produce H+ ions that react to neutralize the OH- ions produced by the base, forming neutral water. The other product will be an ionic salt.

Explanation

In a neutralization reaction, the acid will produce H+ ions that react to neutralize the OH- ions produced by the base, forming neutral water. The other product will be an ionic salt.

4. What type of reaction is H2SO4 + 2NaOH → Na2SO4 + 2H2O?

Combustion

Neutralization

Substitution

Reduction

The given equation, H2SO4 + 2NaOH → Na2SO4 + 2H2O, is a combination of a neutralization reaction and a double displacement reaction. It is a neutralization reaction because H2SO4 and NaOH neutralize each other, forming water and a salt (Na2SO4).

Explanation

The given equation, H2SO4 + 2NaOH → Na2SO4 + 2H2O, is a combination of a neutralization reaction and a double displacement reaction. It is a neutralization reaction because H2SO4 and NaOH neutralize each other, forming water and a salt (Na2SO4).

5. In a neutralization reaction, a strong acid and strong base form what type of solution?

Acidic

Basic

Neutral

None of the above

Neutral solution is obtained from this because acidic and basic solutions of same strength, nullify the effect of each other and the resulting solution has neither basic or acidic behavior. When a strong acid reacts with water, it makes only the solution dilute. It does not nullify or suppress the acidic behavior.

Explanation

Neutral solution is obtained from this because acidic and basic solutions of same strength, nullify the effect of each other and the resulting solution has neither basic or acidic behavior. When a strong acid reacts with water, it makes only the solution dilute. It does not nullify or suppress the acidic behavior.

6. In the reaction between acetic acid and sodium hydroxide, what is the salt formed?

Sodium acetate

Sodium chloride

Sodium sulfate

Sodium nitrate

The salt (Na) from the sodium acetate is changed with the hydroxide (OH) from the salt hydroxide (NaOH). This leaves the acetate ion, which mixes with the salt (Na) from the salt hydroxide to create sodium acetate.

Explanation

The salt (Na) from the sodium acetate is changed with the hydroxide (OH) from the salt hydroxide (NaOH). This leaves the acetate ion, which mixes with the salt (Na) from the salt hydroxide to create sodium acetate.

7. What is the name of the reaction where an acid reacts with a metal oxide?

Combustion

Neutralization

Substitution

Reduction

Metal oxides neutralise the effect of acids and release water, similar to the reaction of a base with an acid. Q. Since the products of reactions of acid + base and acid + metal oxide are same.

Explanation

Metal oxides neutralise the effect of acids and release water, similar to the reaction of a base with an acid. Q. Since the products of reactions of acid + base and acid + metal oxide are same.

8. What is the term for the amount of acid that exactly neutralizes a given amount of base?

Equivalence point

Endpoint

Saturation point

None of the above

At the equivalence point in an acid-base titration, moles of base = moles of acid and the solution only contains salt and water.

Explanation

At the equivalence point in an acid-base titration, moles of base = moles of acid and the solution only contains salt and water.

9. What is formed when a base reacts with a non-metal oxide?

Salt

Water

Acid

Both Salt and Water

When carbon dioxide is dissolved in water it produces carbonic acid. Therefore, when a base reacts with non-metal oxide both neutralize each other resulting production of salt and water.

Explanation

When carbon dioxide is dissolved in water it produces carbonic acid. Therefore, when a base reacts with non-metal oxide both neutralize each other resulting production of salt and water.

10. Which indicator changes color at a pH of 7?

Phenolphthalein

Methyl orange

Bromothymol blue

Litmus

It's used to watch changes in pH; photosynthesis, where carbon dioxide is used up; and respiration (carbon dioxide is produced). This works because bromothymol blue can be deprotonated above a pH of 7.1, which creates a blue color, while the protonated form, below a pH of 7.1, is a yellow compound.

Explanation

It's used to watch changes in pH; photosynthesis, where carbon dioxide is used up; and respiration (carbon dioxide is produced). This works because bromothymol blue can be deprotonated above a pH of 7.1, which creates a blue color, while the protonated form, below a pH of 7.1, is a yellow compound.