WorksheetsAcids & Bases
Total questions: 24
Worksheet time: 12mins
True or False: Pure H2O dissociates into H3O+, which is associated with alkalinity, and OH−, which is connected with acidity
True
False
True or False: An acid is a substance which in solution accepts hydrogen ions, H+, or more strictly H3O+
True
False
True or False: A base is a substance which either contains the oxide O2- or hydroxide ion OH-, or in solution produces the hydroxide ion.
True
False
A soluble base is known as an
acidic
aqueous basic
alkali
un-acidic base
What is a property of bases?
Slippery touch
Sour taste
Ability to corrode a metal
Ability to form hydronium ions
A substance is found to have the following characteristics:
Very bitter taste
Feels slippery to the touch
Produces OH- ions when dissolved in water
In what category would the substance be classified?
acid
base
enzyme
fatty acid
What is an indicator?
A substance that changes colour in acid or alkali.
A substance that produces hydrogen gas when reacted with acids.
A substance that is neutral.
A substance that is always red in colour.
pH is the measure of the concentration of ______.
Acids
H+ ion
OH- ion
Bases
Pure water is _______ on the pH scale.
Acid
Base
Neutral
If all acids had the same concentration, which one would be strong?
pH 1
pH 4
pH 8
pH 13
A strong, concentrated base would have a pH of:
1
7
9
14
A weak acid
is always a concentrated solution
ionises completely
is a dilute solution of OH- ions
partially ionises
HF is...
an acid
a base
a salt
an ionic compound
Which of the following is an Arrhenius Acid?
LiOH
CO32-
OH-
H3PO4
NaOH is:
an Arrhenius base
an Arrhenius acid
neither an acid nor a base
both an acid and a base
Which solution in the picture would be a weaker acid if both solutions are the same concentration?
left solution
right solution
Which of the following will conduct electricity? Select all that apply
Acidic solutions
Basic solutions
Ionic solutions
Neutral covalent solutions
