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WorksheetsAcids, bases and salts test
Total questions: 20
Worksheet time: 15mins
What is the scale called that measures the strength of acids and bases?
pH scale
Acidity scale
Corrosive scale
Hydrogen scale
Which of these is a proton donor?
A buffer
A base
A water molecule
An acid
Which pH value indicates a neutral solution?
0
5
7
10
An example of a base is ammonia. In fact, most household cleaners are bases.
True
False
A strong base is characterized by which of the following?
A high pH
A low pH
A proton donor
Acidic solutions contain high concentrations of which of the following?
electrons
hydrogen ions
hydroxide ions
water
If a substance is considered to be a base, that means it has which of the following set of properties?
low concentration of H+ ions, has a pH value of 1 to 6
low concentration of OH- ions, has a pH value of 1 to 6
high concentration of H+ ions, has a pH value of 8 to 14
high concentration of OH- ions, has a pH value of 8 to 14
What is produced when an acid reacts with a base?
a base and water
water and ethane
water and salt
water only
When found in food, acids often taste _______.
sour
salty
bitter
slippery
What is the chemical name for HCl?
Hypochloric Acid
Hypochlorous Acid
Hydrochloric Acid
Chloric Acid
When you place blue litmus paper into an unknown clear solution, the blue litmus paper turns red.Which of the following represents the most logical conclusion?
The substance has a pH value of "10".
The substance has a pH value of "7".
The substance is a base.
The substance is acidic.
According to the pH range which substance is more acidic than lemon juice
Hydrochloric acid
milk
cabbage
When a base is dissolved in water, what is released?
H+
OH-
CO2
H2O
Screened methyl orange, methyl orange and phenolpthalein are all examples of __________.
litmus papers
pH meters
indicators
colouring agent
What type of gas is produced when an acid reacts with a carbonate?
Carbon dioxide
Oxygen
Hydrogen
Water vapour
is this object acidic or base?
Acidic
Basic
Listed below are common household ingredients with their pH value listed. Which one is the strongest base?
Baking Soda, pH=8.8
Vinegar, pH=3.2
Bleach, pH=13.1
Oven Cleaner, pH=11.2
Which of the following would you use to test for the presence of hydrogen gas
lime water
glowing splint
litmus paper
universal indicator
When an acid and a base are mixed, a process called_________produces a water and a salt.
reactivity
flammability
neutralization
A salt is________ (Select all that applies)
A compound formed when the hydrogen ion in an acid is replaced by a metal ion or ammonium ion.
A compound formed when an acid and a base reacts
A solution with a pH of 2
An alkali
