What is the effect of bases on the pH of a solution?

A. Bases increase the pH

B. Bases decrease the pH

C. Bases have no effect on the pH

D. It depends on the concentration of the base

Answer Explanation:

Bases increase the pH of a solution. As bases ionize in water, they release hydroxide ions (\(OH^-\)), which react with \(H^+\) ions from water, thereby decreasing the concentration of \(H^+\) ions and increasing the pH.

Therefore, the Correct Answer is A.

Q #1: How do bases affect the electrical conductivity of a solution?

A. They decrease conductivity

B. They increase conductivity

C. They have no effect on conductivity

D. It depends on the concentration of the base

Answer Explanation

Bases increase the electrical conductivity of a solution. This is because bases ionize in water to produce hydroxide ions (\(OH^-\)), which carry an electric charge.
Q #2: Which of the following properties is a characteristic of bases?

A. React with metals to release hydrogen gas

B. Turn litmus paper red

C. Have a sour taste

D. Conduct electricity in solution

Answer Explanation

Bases do not react with metals to release hydrogen gas. This property distinguishes them from acids, which do react with metals to produce hydrogen gas.
Q #3: Which of the following statements about the taste of bases is true?

A. Bases have a sweet taste

B. Bases have a bitter taste

C. Bases have a sour taste

D. Bases have no taste

Answer Explanation

Bases have a bitter taste. However, tasting chemicals is not safe and should never be done.

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What is the effect of bases on the pH of a solution?

More Questions on TEAS 7 Science

Q #1: How do bases affect the electrical conductivity of a solution?

Answer Explanation

Q #2: Which of the following properties is a characteristic of bases?

Answer Explanation

Q #3: Which of the following statements about the taste of bases is true?

Answer Explanation

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