AP POLYCET CHEMISTRY Multiple Choice Questions (MCQs)

AP POLYCET CHEMISTRY - Acids, Bases, and Salts: Multiple Choice Questions (MCQs)

106. Which of the following is an example of an acid?
     A) Sodium hydroxide
     B) Hydrochloric acid
     C) Ammonia
     D) Calcium carbonate
     Answer: B) Hydrochloric acid
107. Which of the following is a property of acids?
     A) They turn red litmus paper blue
     B) They are slippery to touch
     C) They turn blue litmus paper red
     D) They taste bitter
     Answer: C) They turn blue litmus paper red
108. Which of the following is a base?
     A) HCl
     B) NaOH
     C) H₂SO₄
     D) CH₃COOH
     Answer: B) NaOH
109. What is the pH value of a neutral substance?
     A) 7
     B) 0
     C) 14
     D) 1
     Answer: A) 7
110. What is formed when an acid reacts with a base?
     A) Water and salt
     B) Water and hydrogen gas
     C) Salt and gas
     D) Only salt
     Answer: A) Water and salt
111. Which of the following is a strong acid?
     A) Hydrochloric acid
     B) Acetic acid
     C) Citric acid
     D) Sulfuric acid
     Answer: A) Hydrochloric acid
112. What is the pH range of acids?
     A) 0-7
     B) 7-14
     C) 0-14
     D) 7
     Answer: A) 0-7
113. Which of the following salts is formed when hydrochloric acid reacts with sodium hydroxide?
     A) NaCl
     B) Na₂SO₄
     C) NaNO₃
     D) Na₂CO₃
     Answer: A) NaCl
114. Which of the following is a property of bases?
     A) They turn red litmus paper blue
     B) They are sour in taste
     C) They release hydrogen ions in water
     D) They turn blue litmus paper red
     Answer: A) They turn red litmus paper blue
115. Which of the following is used to neutralize an acid?
     A) Vinegar
     B) Limewater
     C) Sodium bicarbonate
     D) Water
     Answer: C) Sodium bicarbonate
116. Which of the following substances is used as an antacid to neutralize stomach acidity?
     A) Sodium bicarbonate
     B) Sulfuric acid
     C) Hydrochloric acid
     D) Acetic acid
     Answer: A) Sodium bicarbonate
117. Which of the following acids is commonly found in vinegar?
     A) Hydrochloric acid
     B) Acetic acid
     C) Nitric acid
     D) Sulfuric acid
     Answer: B) Acetic acid
118. What is the chemical formula of sulfuric acid?
     A) HCl
     B) H₂SO₄
     C) HNO₃
     D) H₃PO₄
     Answer: B) H₂SO₄
119. Which of the following salts is produced when sulfuric acid reacts with sodium hydroxide?
     A) NaCl
     B) Na₂SO₄
     C) NaNO₃
     D) Na₂CO₃
     Answer: B) Na₂SO₄
120. Which of the following is an example of a basic salt?
     A) Sodium chloride
     B) Sodium bicarbonate
     C) Ammonium chloride
     D) Potassium nitrate
     Answer: B) Sodium bicarbonate

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