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Q 1/8
Score 0
An acidic solution contains
30
equal numbers of hydrogen ions and hydroxide ions
more hydrogen ions than hydroxide ions
only hydrogen ions
more hydroxide ions than hydrogen ions
Q 2/8
Score 0
When an alkaline solution is diluted with water
30
the concentration of hydroxide ions decreases
the pH increases
the concentration of hydroxide ions increases
the pH stays the same
8 questions
Q.
An acidic solution contains
1
30 sec
Q.
When an alkaline solution is diluted with water
2
30 sec
Q.
An element was burned in air. The product was added to water, producing a solution with a pH less than 7. The element could be
3
30 sec
Q.
Which of the following oxides, when shaken with water, would leave the pH unchanged?You may wish to use the data booklet to help you.
4
30 sec
Q.
Which compound would not neutralise hydrochloric acid?
5
30 sec
Q.
Which of the following is not a salt?
6
30 sec
Q.
AgNO₃(aq) + NaBr(aq) → NaNO₃(aq) + AgBr(s)
7
30 sec
Q.
A student prepared a sample of copper sulfate crystals by reacting excess copper carbonate with acid. Which line in the table shows the correct order in which this experiment would be carried out? (Image from https://www.sqa.org.uk/pastpapers/papers/papers/2018/N5_Chemistry_all_2018.pdf)
