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 feel of the solution?

A. Bases make the solution feel sticky

B. Bases make the solution feel slippery

C. Bases have no effect on the feel of the solution

D. It depends on the concentration of the base

Answer Explanation

Bases make the solution feel slippery or soapy to the touch. This is due to the formation of soap-like substances when bases react with fatty acids.
Q #2: 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 #3: What effect do bases have on indicators like litmus paper?

A. Turn it blue

B. Turn it red

C. Turn it green

D. No effect

Answer Explanation

Bases turn litmus paper blue. Litmus is a common indicator that changes color in response to the acidity or basicity of a solution. In the presence of a base, litmus paper turns blue.

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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 feel of the solution?

Answer Explanation

Q #2: How do bases affect the electrical conductivity of a solution?

Answer Explanation

Q #3: What effect do bases have on indicators like litmus paper?

Answer Explanation

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