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12 questions
Which of these taste sour?
acids
bases
salts
Which of these feel slippery?
bases
acids
salts
Which of these turn red litmus paper blue?
acids
bases
salts
The pH scale is used to determine the strength of
acids and bases
chemical bonds
electrical charges
particles in a solution
Anything with a pH of 7 is a(n)
neutral substance
acid
base
chemical salt
Chemicals formed when an acid and a base combine.
salts
noble gases
metalloids
hydroxides
A weak base will have a pH close to
8
6
0
14
A very strong acid will have a pH of
0
14
5
9
Unsweetened chocolate tastes bitter because chocolate contains a
base
acid
chemical salt
Bases turn Red litmus to ...................
Green
Yellow
Blue
Black
If the given solution neither changes the colour of the red litmus nor blue litmus paper , it is ..........................
An Acid
A base
Neutral
Colourless
Which method is recommended to dilute an acid
An acid is added to water
Water added to acid
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