EduNinja

CAIE IGCSE Chemistry 7.1.11 Hydrochloric acid is a strong acid, as

CAIE IGCSE Chemistry 7.1.11 Hydrochloric acid is a strong acid, as
Cambridge IGCSE Chemistry 0620 syllabus for exams in 2026, 2027 and 20282026–2028

Practise recognising hydrochloric acid as a strong acid from complete ionisation into H+(aq) and Cl-(aq) in symbol equations.

How this is tested

  • recognise HCl(aq) -> H+(aq) + Cl-(aq) as evidence for complete dissociation
  • identify chlorine from a binary hydrogen compound that forms a strong acid

Question 1(j)

[Maximum number: 1]

The symbols of the elements of Period 3 of the Periodic Table are shown.

Table for Question 1(j) — CAIE IGCSE Chemistry

Answer the following questions about these elements.
Each element may be used once, more than once or not at all.
Write the symbol of an element which:

forms a binary compound with hydrogen that is a strong acid.