
ACIDS, BASES and SALTS - Introduction
Authored by Mrs. Y. ALEXANDER
Chemistry
6th - 8th Grade
Used 21+ times

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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The actual change which occurs when sodium hydroxide solution reacts with sulfuric acid is:
2Na+(aq) + SO42-(aq) --> Na2SO4 (aq)
OH-(aq) +H+(aq) --> H2O(l)
2NaOH (aq) + H2SO4 (aq) --> Na2SO4 (s) + 2H2O (l)
NaOH(aq) + H2SO4 (aq) --> Na2SO4 (aq) + H2O (l)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not an amphoteric substance?
Lead (II) oxide
Aluminium hydroxide
iron (III) oxide
zinc hydroxide
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sulfuric acid is a stronger acid than ethanoic acid (acetic acid) in aqueous solution because sulfuric acid
is more corrosive than ethanoic acid
is more concentrated than ethanoic acid
ionizes to a greater extent than ethanoic acid
causes sugar to char whereas ethanoic acid does not
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An acid can be defined as
proton donor
neutron acceptor
proton acceptor
neutron donor
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A salt was heated with certain base. the gas evolved turned moist red litmus paper blue. Which of the following ions does the salt contain?
nitrate (V)
Ammonium
sulfate (VI)
carbonate
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The following graph which shows the variation of the pH of the mixture formed when solution Y is added to a fixed volume of solution.
Which of the following pairs of substances can represent solution X and Y?
X: HCl (aq) Y: H2O
X: KOH (aq) Y: H2O
X: HCl (aq) Y: KOH
X: KOH (aq) Y: HCl (aq)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following oxides may show both acidic and basic properties?
iron(II) oxide
sodium oxide
calcium oxide
aluminium oxide
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