Properties of Bases
Chemistry ⇒ Acids, Bases, and Salts
Properties of Bases starts at 7 and continues till grade 12.
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See sample questions for grade 12
A solution has a hydroxide ion concentration of 1 × 10-3 mol/L. Calculate its pOH and pH.
A solution has a pH of 12. Is it acidic, neutral, or basic?
A student adds a few drops of sodium hydroxide solution to a red litmus paper. What will be the color of the litmus paper after the addition?
A student mixes 0.1 mol of NaOH with 0.1 mol of HCl in water. What is the pH of the resulting solution?
A solution has a hydroxide ion concentration of 1 × 10-3 mol/L. Calculate its pOH and pH.
A solution has a pH of 12. Is it acidic, neutral, or basic?
A student adds a few drops of sodium hydroxide solution to a red litmus paper. What will be the color of the litmus paper after the addition?
A student mixes 0.1 mol of NaOH with 0.1 mol of HCl in water. What is the pH of the resulting solution?
Which of the following bases is soluble in water?
(1) Calcium hydroxide
(2) Sodium hydroxide
(3) Copper(II) hydroxide
(4) Iron(III) hydroxide
Which of the following bases is used in the manufacture of soap?
(1) Sodium hydroxide
(2) Ammonium hydroxide
(3) Calcium hydroxide
(4) Iron(III) hydroxide
Which of the following indicators turns blue in a basic solution?
(1) Phenolphthalein
(2) Methyl orange
(3) Bromothymol blue
(4) Universal indicator
Which of the following is a general property of bases?
(1) They turn red litmus blue
(2) They turn blue litmus red
(3) They have a sour taste
(4) They react with metals to produce hydrogen gas
Fill in the blank: Bases have a ________ taste.
Fill in the blank: The base commonly used in antacids is ________.
Fill in the blank: The base found in household bleach is ________.
Fill in the blank: The base used in the Bayer process for extracting aluminum is ________.
True or False: All bases are alkalis.
True or False: All bases are soluble in water.
True or False: Aqueous solutions of bases conduct electricity.
True or False: Bases can be amphoteric.
