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Which of the following properties is a characteristic of acids?

A. Bitter taste

B. Turn litmus paper blue

C. React with metals to release hydrogen gas

D. Do not Conduct electricity in solution

Answer Explanation:

Acids react with certain metals to release hydrogen gas. This is a characteristic property of acids known as their reactivity with metals.

Therefore, the Correct Answer is C.

Q #1: Which of the following statements about the taste of acids is true?

A. Acids have a sweet taste

B. Acids have a bitter taste

C. Acids have a sour taste

D. Acids have no taste

Answer Explanation

Acids have a sour taste. This is one of their characteristic properties, though tasting chemicals is not safe and should never be done.
Q #2: Which of the following is not a property of acids?

A. React with bases to form salts

B. Turn litmus paper blue

C. Have a sour taste

D. Conduct electricity in solution

Answer Explanation

Acids turn litmus paper red, not blue. This property distinguishes them from bases, which turn litmus paper blue.
Q #3: How does the reaction of an acid with a base affect the pH of the resulting solution?

A. The pH increases

B. The pH decreases

C. The pH remains unchanged

D. It depends on the specific acid and base

Answer Explanation

When an acid reacts with a base in a neutralization reaction, the pH of the resulting solution remains unchanged if the quantities of acid and base are stoichiometrically balanced. This is because the \(H^+\) ions from the acid react with the \(OH^-\) ions from the base to form water, effectively neutralizing each other.

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