Other alkaline solutions
2 marks · NormalState the name and the formula of the ion responsible for acidity in aqueous solutions.
(a)[1 mark]
Name of the ion:
(b)[1 mark]
Formula of the ion:
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(a) hydrogen ion
(b) H^+
Common mistakes: H for the formula; OH^- for the ion
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Marking points
B1 (a) · 1 mark · States the correct name: hydrogen ion
B1 (b) · 1 mark · Gives the correct formula: H^+
Worked solution
a) The ion responsible for acidity is the hydrogen ion.
b) Its formula is H^+.