The strength of an alkali depends on
10-minute Quiz : Chapter 17 Strength of acids and alkalis

Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Chemistry Aristo
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A. the number of hydrogen atoms each molecule of an alkali has.
B. the number of hydroxide ions produced per molecule of an alkali when dissolved in water.
C. its extent of ionization or dissociation in water.
D. the rate of forming salts when reacting with acids.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following acids are weak acids?
(1) Citric acid
(2) Carbonic acid
(3) Sulphurous acid
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the four solutions below:
(1):0.1 M HCl(aq)
(2):1.0 M HCl(aq)
(3):0.1 M CH₃COOH(aq)
(4):1.0 M H₂SO₄(aq)
Which of the following represents the solutions arranged in increasing pH?
A. (1), (2), (3), (4)
B. (2), (4), (1), (3)
C. (3), (1), (2), (4)
D. (4), (2), (1), (3)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
30 cm³ of 0.10 M sulphuric acid is mixed with 40 cm³ of 0.15 M aqueous ammonia. Which of the following relationships about [H⁺(aq)] and [OH⁻(aq)] in the resultant solution is correct?
A. [H⁺(aq)] < [OH⁻(aq)]
B. [H⁺(aq)] > [OH⁻(aq)]
C. [H⁺(aq)] = [OH⁻(aq)]
D. [H⁺(aq)] = 2[OH⁻(aq)]
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following would increase the pH of 0.1 M aqueous ammonia?
(1) Adding 0.1 M sodium hydroxide solution
(2) Adding solid sodium chloride
(3) Adding a small amount of water
A. (1) only
B. (2) only
C. (1) and (3) only
D. (2) and (3) only
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The pH of solutions X and Y are 2 and 1 respectively. 50 cm³ of solution X is mixed with 50 cm³ of solution Y. What is the pH of the resultant solution?
A. 0.74
B. 1.3
C. 1.5
D. 1.8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
It is known that the pH of a sample of acid X and that of a sample of acid Y are both 3.5. Which of the following statements MUST be correct?
(1) The two samples have the same concentration of H⁺(aq) ions.
(2) X and Y are of the same basicity.
(3) X and Y are of the same strength.
A. (1) only
B. (2) only
C. (1) and (3) only
D. (2) and (3) only
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