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ACTUAL OCR 2024 OCR A Level CHEMISTRY A May-June 2024 Question Paper 1 WITH MARK SCHEME
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ACTUAL OCR 2024 OCR A Level CHEMISTRY A May-June 2024 Question Paper 1 WITH MARK SCHEME
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SECTION A
You should spend a maximum of 20 minutes on this section.
Write your answer to each question in the box provided.
1 Oxygen has the electron configuration 1s22s22p4.
How are the electrons in an atom of oxygen arranged in the p-orbitals?
A
↑↑ ↑↑
B
↑↓ ↑↓
C
↑↑ ↑ ↑
D
↑↓ ↑ ↑
Your answer [1]
2 Water has the anomalous properties below.
• Water has relatively high melting and boiling points.
• Ice is less dense than water.
Which statement explains these anomalous properties?
A The covalent bonding within water molecules.
B The hydrogen bonding between water molecules.
C The induced dipole–dipole interactions (London forces) between water molecules.
D The ionic bonding between water molecules.
Your answer [1]
© OCR 2024
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