DP Chemistry (first assessment 2025)

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Question 21N.1A.HL.TZ0.13

Date	November 2021	Marks available	[Maximum mark: 1]	Reference code	21N.1A.HL.TZ0.13
Level	HL	Paper	1A	Time zone	TZ0
Command term	Interpret	Question number	13	Adapted from	N/A

13.

[Maximum mark: 1]

21N.1A.HL.TZ0.13

What is the hybridization of nitrogen and chlorine in NCl₃?

[1]

Markscheme

D

Syllabus sections

Structure 2. Models of bonding and structure » Structure 2.2—The covalent model » Structure 2.2.16—Hybridization is the concept of mixing atomic orbitals to form new hybrid orbitals for bonding. Analyse the hybridization and bond formation in molecules and ions. Identify the relationships between Lewis formulas, electron domains, molecular geometry and type of hybridization. Predict the geometry around an atom from its hybridization, and vice versa.