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8.3 Identification of ions by chemical and spectroscopic means

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Question 20
H

Which equation for the reaction of copper(II) sulfate solution with sodium hydroxide solution has correct formulae and is balanced?

[1]
A

CuSO4+NaOH→Cu(OH)2+Na2SO4\text{CuSO}_4 + \text{NaOH} \rightarrow \text{Cu(OH)}_2 + \text{Na}_2\text{SO}_4CuSO4​+NaOH→Cu(OH)2​+Na2​SO4​

B

CuSO4+2NaOH→CuOH+Na2SO4\text{CuSO}_4 + 2\text{NaOH} \rightarrow \text{CuOH} + \text{Na}_2\text{SO}_4CuSO4​+2NaOH→CuOH+Na2​SO4​

C

CuSO4+2NaOH→Cu(OH)2+Na2SO4\text{CuSO}_4 + 2\text{NaOH} \rightarrow \text{Cu(OH)}_2 + \text{Na}_2\text{SO}_4CuSO4​+2NaOH→Cu(OH)2​+Na2​SO4​

D

2CuSO4+2NaOH→Cu(OH)2+Na2SO42\text{CuSO}_4 + 2\text{NaOH} \rightarrow \text{Cu(OH)}_2 + \text{Na}_2\text{SO}_42CuSO4​+2NaOH→Cu(OH)2​+Na2​SO4​

Markscheme

8.3 Identification of ions by chemical and spectroscopic means Questions

  1. GCSE
  2. /Chemistry
  3. /8.3 Identification of ions by chemical and spectroscopic means

40 exam-style questions on AQA GCSE Chemistry 8.3 Identification of ions by chemical and spectroscopic means, covering 8.3.1 Flame tests, 8.3.2 Metal hydroxides, 8.3.3 Carbonates, 8.3.4 Halides, 8.3.5 Sulfates, 8.3.6 Instrumental methods, and 8.3.7 Flame emission spectroscopy. Each one has a worked solution and a mark scheme showing where the marks go.

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