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Group 2

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Question 4

Which statement(s) for Group 2 elements is/are correct?

  1. The first ionisation energy of barium is greater than the first ionisation energy of calcium.
  2. A magnesium ion, Mg2+\text{Mg}^{2+}Mg2+, contains a total of 6 electrons in p orbitals.
  3. The equation for the reaction of magnesium with steam is:
Mg(s)+H2O(g)→MgO(s)+H2(g) \text{Mg(s)} + \text{H}_2\text{O(g)} \rightarrow \text{MgO(s)} + \text{H}_2\text{(g)} Mg(s)+H2​O(g)→MgO(s)+H2​(g)
A

1, 2 and 3

B

Only 1 and 2

C

Only 2 and 3

D

Only 1

Markscheme

Group 2 Questions

  1. A Level
  2. /Chemistry
  3. /Group 2

14 exam-style questions on OCR A A Level Chemistry Group 2. Each one has a worked solution and a mark scheme showing where the marks go.

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