Which of the following are correct?
pH 9 is acid and pH 7 is neutral
pH 4 is acid and pH 7 is neutral
pH 6 is acid and pH 8 is neutral
What type of solution would be formed when sulfur dioxide dissolves in water?
Alkaline solution
Acidic solution
Neutral solution
What would be the pH of the solution formed when sodium oxide dissolves in water?
Above 7
Equal to 7
Less than 7
Which of these everyday substances is alkaline?
Fizzy juice
Vinegar
Drain unblocker
Which salt is made when sodium hydroxide reacts with hydrochloric acid?
Sodium chloride
Sodium sulfate
Sodium nitrate
Which of the following are the correct products from the reaction between magnesium hydroxide and sulfuric acid?
Magnesium sulfate + water
Magnesium sulfate + water + carbon dioxide
Magnesium sulfate + hydrogen
What is the name of the type of reaction that happens between acids and alkalis?
Neutralisation
Addition
Polymerisation
What happens to the pH of an acidic solution as water is added?
It decreases
It increases
It stays the same
Which of the following is a pollution problem associated with acid rain?
Ozone layer depletion
Global Warming
Erodes limestone statues
Which of the following happens to the pH of an acid when it is neutralised?
The pH does not change
The pH increases towards 7
The pH decreases towards 7