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CAIE IGCSE Chemistry 7.1.11 Hydrochloric Acid Is a Strong Acid As Questions

Use complete aqueous dissociation and the ions formed to identify a binary hydrogen compound that produces a strong acid.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • recognise HCl(aq) -> H+(aq) + Cl-(aq) as evidence for complete dissociation
  • identify chlorine from a binary hydrogen compound that forms a strong acid
  • link complete ionisation to strong-acid behaviour
  • distinguish the compound identity from the ions formed in aqueous solution

CAIE IGCSE Chemistry 7.1.11 Hydrochloric Acid Is a Strong Acid As Questions question 1

[Maximum number: 1]

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

Table for Question CAIE IGCSE Chemistry 7.1.11 Hydrochloric Acid Is a Strong Acid As Questions question 1 — 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.

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