Acid-Base Reaction Quiz

1. When a proton gets donated into water, it is accepted by that water.

True

False

When a proton is donated into water, it means that a hydrogen ion (H+) is transferred to a water molecule. Water has the ability to accept protons due to its polar nature and the presence of lone pairs of electrons on oxygen atoms. This acceptance of protons by water is what allows it to act as a solvent for many substances and participate in various chemical reactions. Therefore, the statement "When a proton gets donated into water, it is accepted by that water" is true.

Explanation

When a proton is donated into water, it means that a hydrogen ion (H+) is transferred to a water molecule. Water has the ability to accept protons due to its polar nature and the presence of lone pairs of electrons on oxygen atoms. This acceptance of protons by water is what allows it to act as a solvent for many substances and participate in various chemical reactions. Therefore, the statement "When a proton gets donated into water, it is accepted by that water" is true.

2. H₂O is which of the following in this reaction?HCl + H₂O > H₃O+ + Cl

Bronsted Lowry Acid

Bronsted Lowry Base

Conjugate Acid

Conjugate Base

In this reaction, H₂O acts as a proton acceptor by accepting a proton from HCl to form H₃O+. According to the Bronsted-Lowry theory, a base is a substance that accepts a proton, and since H₂O is accepting a proton in this reaction, it is considered a Bronsted-Lowry base.

Explanation

In this reaction, H₂O acts as a proton acceptor by accepting a proton from HCl to form H₃O+. According to the Bronsted-Lowry theory, a base is a substance that accepts a proton, and since H₂O is accepting a proton in this reaction, it is considered a Bronsted-Lowry base.

3. HCl is which of the following in this reaction?HCl + H₂O > H₃O+ + Cl

Bronsted Lowry Acid

Bronsted Lowry Base

Conjugate Acid

Conjugate Base

In this reaction, HCl donates a proton (H+) to water, forming the hydronium ion (H₃O+). According to the Bronsted-Lowry acid-base theory, an acid is a substance that donates a proton. Therefore, HCl is acting as an acid in this reaction by donating a proton to water.

Explanation

In this reaction, HCl donates a proton (H+) to water, forming the hydronium ion (H₃O+). According to the Bronsted-Lowry acid-base theory, an acid is a substance that donates a proton. Therefore, HCl is acting as an acid in this reaction by donating a proton to water.

4. Acids take in the proton (H+).

True

False

Acids donate protons (H+) rather than taking them in. When an acid dissolves in water, it releases H+ ions, which can then react with other molecules. Therefore, the correct answer is false.

Explanation

Acids donate protons (H+) rather than taking them in. When an acid dissolves in water, it releases H+ ions, which can then react with other molecules. Therefore, the correct answer is false.

5. Which of the following donates a proton?HCl + NaOH > H₂O + NaCl

HCl

NaOH

H₂O

NaCl

HCl donates a proton in this reaction. When HCl reacts with NaOH, the HCl molecule donates a proton (H+) to the NaOH molecule. This proton transfer results in the formation of water (H₂O) and NaCl (sodium chloride).

Explanation

HCl donates a proton in this reaction. When HCl reacts with NaOH, the HCl molecule donates a proton (H+) to the NaOH molecule. This proton transfer results in the formation of water (H₂O) and NaCl (sodium chloride).

6. Cl is which of the following in this reaction?HCl + H₂O > H₃O+ + Cl

Bronsted Lowry Acid

Bronsted Lowry Base

Conjugate Acid

Conjugate Base

In this reaction, Cl is the conjugate base. This is because it is the species that remains after the HCl donates a proton to water, forming the H₃O+ ion. The Cl ion has gained an electron and has a negative charge, making it the conjugate base of the acid HCl.

Explanation

In this reaction, Cl is the conjugate base. This is because it is the species that remains after the HCl donates a proton to water, forming the H₃O+ ion. The Cl ion has gained an electron and has a negative charge, making it the conjugate base of the acid HCl.

7. A _______ base is formed once the proton is donated.

A conjugate base is formed once the proton is donated. This is because when a proton is donated, the molecule or ion that loses the proton becomes negatively charged and is called the conjugate base. The conjugate base is formed as a result of the loss of the proton and is often the product of an acid-base reaction.

Explanation

A conjugate base is formed once the proton is donated. This is because when a proton is donated, the molecule or ion that loses the proton becomes negatively charged and is called the conjugate base. The conjugate base is formed as a result of the loss of the proton and is often the product of an acid-base reaction.

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8. H₃O+ is which of the following in this reaction?HCl + H₂O > H₃O+ + Cl

Bronsted Lowry Acid

Bronsted Lowry Base

Conjugate Acid

Conjugate Base

In this reaction, H₃O+ is formed by accepting a proton (H+) from HCl, making it the conjugate acid. A conjugate acid is formed when a base accepts a proton. In this case, H₂O acts as the base and accepts a proton from HCl, forming H₃O+.

Explanation

In this reaction, H₃O+ is formed by accepting a proton (H+) from HCl, making it the conjugate acid. A conjugate acid is formed when a base accepts a proton. In this case, H₂O acts as the base and accepts a proton from HCl, forming H₃O+.