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A-LevelChemistryChemical bondingOct/Nov 2025Paper 1 Q51 Mark

The bonding between two atoms of nitrogen in an N2 molecule involves the hybridisation of atomic orbitals to form sp orbitals. Which row is correct?

Aan sp orbital from one atom overlaps with an sp orbital of the other atom; p
Ban sp orbital from one atom overlaps with an sp orbital of the other atom; sp
Can s orbital from one atom overlaps with a p orbital of the other atom; p
Dan s orbital from one atom overlaps with a p orbital of the other atom; sp

✓ Correct Answer

The correct answer is B: an sp orbital from one atom overlaps with an sp orbital of the other atom; sp

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Chemistry Question

Topic

This multiple-choice question tests Chemical bonding in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Chemistry Oct/Nov 2025 examination, Paper 1 Variant 2.

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