AP POLYCET CHEMISTRY Multiple Choice Questions (MCQs)
AP POLYCET Chemistry - Acids, Bases, and Salts
-
Which of the following is a property of acids?
- A) They feel slippery to the touch.
- B) They turn blue litmus paper red. (Answer)
- C) They have a bitter taste.
- D) They do not react with metals.
-
Which of the following is a strong acid?
- A) HCl (Answer)
- B) CH₃COOH
- C) H₂CO₃
- D) H₂SO₃
-
What is the pH range of acids?
- A) 0-7 (Answer)
- B) 7-14
- C) 0-14
- D) 7
-
Which of the following is an example of a base?
- A) NaOH (Answer)
- B) HCl
- C) H₂SO₄
- D) HNO₃
-
What is formed when an acid reacts with a base?
- A) Water and salt (Answer)
- B) Gas and water
- C) Water and hydrogen gas
- D) Salt and hydrogen gas
-
What is the pH range of bases?
- A) 0-7
- B) 7-14 (Answer)
- C) 0-14
- D) 7
-
Which of the following is a neutral substance?
- A) Water (Answer)
- B) HCl
- C) NaOH
- D) NaCl
-
Which of the following salts is formed when hydrochloric acid reacts with sodium hydroxide?
- A) NaCl (Answer)
- B) Na₂SO₄
- C) NaNO₃
- D) Na₂CO₃
-
What is the nature of ammonium hydroxide in water?
- A) Acidic
- B) Basic (Answer)
- C) Neutral
- D) Amphoteric
-
Which of the following substances is used as an antacid to neutralize stomach acidity?
- A) Sodium bicarbonate (Answer)
- B) Sodium hydroxide
- C) Sulfuric acid
- D) Hydrochloric acid
-
Which of the following acids is commonly found in vinegar?
- A) Hydrochloric acid
- B) Sulfuric acid
- C) Acetic acid (Answer)
- D) Nitric acid
-
What is the effect of acids on litmus paper?
- A) Turns blue litmus paper red (Answer)
- B) Turns red litmus paper blue
- C) No effect
- D) Makes litmus paper turn purple
-
What is formed when sodium carbonate reacts with hydrochloric acid?
- A) Sodium chloride and carbon dioxide (Answer)
- B) Sodium hydroxide and carbon dioxide
- C) Sodium chloride and water
- D) Sodium bicarbonate and carbon dioxide
-
Which of the following is an example of an acidic salt?
- A) Sodium acetate
- B) Ammonium chloride (Answer)
- C) Sodium chloride
- D) Potassium sulfate
-
Which of the following bases is used for making soap?
- A) Sodium hydroxide (Answer)
- B) Potassium hydroxide
- C) Calcium hydroxide
- D) Magnesium hydroxide
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