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3.3 Types of chemical reactions

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Question 3
F

Which statement about the particles in solutions of acids and alkalis is correct?

[1]
A

Acids contain OH−\mathrm{OH^{-}}OH− ions and alkalis contain H+\mathrm{H^{+}}H+ ions.

B

Acids contain H+\mathrm{H^{+}}H+ ions and alkalis contain OH−\mathrm{OH^{-}}OH− ions.

C

Acids contain H2\mathrm{H_{2}}H2​ molecules and alkalis contain OH−\mathrm{OH^{-}}OH− ions.

D

Acids contain Cl−\mathrm{Cl^{-}}Cl− ions and alkalis contain Na+\mathrm{Na^{+}}Na+ ions.

Markscheme

3.3 Types of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.3 Types of chemical reactions

53 exam-style questions on OCR GCSE Chemistry 3.3 Types of chemical reactions, covering 3.3.1 Oxidation and reduction in terms of oxygen, 3.3.2 Acids, alkalis and neutralisation, 3.3.3 The pH scale and measuring pH, 3.3.4 Oxidation and reduction in terms of electrons, 3.3.5 Dilute and concentrated, weak and strong acids, and 3.3.6 Hydrogen ion concentration and pH. Each one has a worked solution and a mark scheme showing where the marks go.

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