Objective I: Acids and Bases - Identify Acids, Bases, Salts
Authored by Desmond Tan
Chemistry
9th Grade
Used 10+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula of nitric acid?
HCl
H2SO4
HNO3
H+
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula of hydrochloric acid?
HCl
H2SO4
HNO3
H+
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following correctly describes H2SO4?
acid
base
salt
Answer explanation
An acid produces H+ ions in water.
Hence, it will have the element H in its formula.
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which statements about an acid are correct? Choose 2 answers.
It must be dissolved in water.
It contains H+ ions.
It is a metal oxide or metal hydroxide.
NaCl is an acid.
Answer explanation
When acids dissolve in water, the acid molecules ionise to produce H+ ions, giving its acidic properties.
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following statements about a base are not correct?
Choose 2 answers.
It is a metal oxide.
It is a metal hydroxide.
It contains hydrogen ions.
It is a metal chloride.
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following is a base?
You may choose more than 1 answer.
KOH
CuO
KCl
CuSO4
Answer explanation
A base is a metal oxide or metal hydroxide.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the formula of magnesium oxide?
MgO
Mg2O
MgO2
Mg2O2
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