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2.1 Chemical bonds, ionic, covalent and metallic

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Question 16

In a displayed formula, each shared pair of electrons is shown as a line between the atom symbols.

Which molecule has a displayed formula with a total of exactly two lines?

[1]
A

water, H2O\text{H}_2\text{O}H2​O

B

methane, CH4\text{CH}_4CH4​

C

nitrogen, N2\text{N}_2N2​

D

hydrogen chloride, HCl\text{HCl}HCl

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2.1 Chemical bonds, ionic, covalent and metallic Questions

  1. GCSE
  2. /Chemistry
  3. /2.1 Chemical bonds, ionic, covalent and metallic

98 exam-style questions on AQA GCSE Chemistry 2.1 Chemical bonds, ionic, covalent and metallic, covering 2.1.1 Chemical bonds, 2.1.2 Ionic bonding, 2.1.3 Ionic compounds, 2.1.4 Covalent bonding, and 2.1.5 Metallic bonding. Each one has a worked solution and a mark scheme showing where the marks go.

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