O-LevelChemistryBonding & Structure5070/11 · Oct/Nov 2018 · Q81 Mark

What is the dot-and-cross diagram for NCl₃?

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ACentral nitrogen atom forming three single bonds with chlorine atoms, with two lone pairs on nitrogen.

BCentral nitrogen atom forming three single bonds with chlorine atoms, with one lone pair on nitrogen (using crosses for N and dots for Cl).

CCentral nitrogen atom forming three single bonds with chlorine atoms, with one lone pair on nitrogen (using dots for N and crosses for Cl).

DCentral nitrogen atom forming three single bonds with chlorine atoms, with no lone pairs on nitrogen.

✓ Correct answer

C: Central nitrogen atom forming three single bonds with chlorine atoms, with one lone pair on nitrogen (using dots for N and crosses for Cl).

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 1, question 8.

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