A-LevelChemistryChemical bonding9701/12 · Feb/Mar 2017 · Q311 Mark

Nitrogen and phosphorus are both in Group 15 of the Periodic Table. Phosphorus forms a chloride with the formula PCl₅ but nitrogen does not form NCl₅. Which statements help to explain this? 1 Nitrogen's outer shell cannot contain more than eight electrons. 2 Nitrogen cannot have an oxidation state of +5. 3 Nitrogen is less electronegative than phosphorus.

A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

D: 1 only is correct

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Topic: Chemical bonding, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2017 Paper 1 Variant 2, question 31.

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