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1) Which of the following is used in liquid soap and shaving cream? a. sodium hydroxide b. potassium hydroxide c. calcium hydroxide d. magnesium hydroxide
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2) What is the pH of distilled water? a. 5 b. 6 c. 7 d. 8
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3) Considering the methods for making salt, the reaction of acid and metal gives a. salt and water b. salt and hydrogen c. salt, carbon dioxide and water d. salt and salt
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4) What is the pH of the soapy solution? a. 8 b. 9 c. 10 d. 12
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5) The water molecule that donates a proton becomes a a. negatively charged hydroxide ion b. negatively charged oxygen ion c. negatively charged hydrogen ion d. positively charged hydronium ion
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6) What is the pH of saliva? a. 6 b. 7 c. 8 d. 9
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7) Considering Bronsted-Lowery theory, a base is a a. proton acceptor b. electron acceptor c. proton donor d. electron donor
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8) NaHSO4 is a/an a. basic salt b. common salt c. acid salt d. normal salt
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9) What is the effect of acid on blue litmus paper? a. it remains blue b. it turns pink c. it turns red d. it becomes colorless
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10) When [H+] is greater than 1 x 10-7, the solution is a. neutral b. acidic c. basic d. amphoteric
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11) Taste of base is a. sour b. sweet c. bitter d. it is tasteless
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12) What is the pH of tomato juice? a. 4 b. 7 c. 8 d. 9
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13) What is the color of methyl red in acidic solution? a. red b. yellow c. blue d. colorless
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14) What is the first part of the name of salt? a. negative part of the acid b. base c. metal ion d. non metallic ion
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15) Substances that react with both acids and bases are called a. Lewis acids b. amphoteric substances c. salts d. Lewis bases
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16) Which of the following is used in soap making and drain cleaners? a. sodium hydroxide b. potassium hydroxide c. calcium hydroxide d. magnesium hydroxide
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17) What is the color of Bromothymol blue in acidic solution? a. red b. yellow c. blue d. colorless
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18) During etching, a piece of metal or glass is covered with a. acid b. base c. wax d. water
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19) What is formed when the replaceable hydrogen atoms in acid are completely or partially replaced by metal atoms? a. water b. amphoteric substance c. base d. salt
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20) Taste of acid is a. sour b. sweet c. bitter d. it is tasteless
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