DP Chemistry (first assessment 2025)

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Question 19M.1A.HL.TZ1.13

Date	May 2019	Marks available	[Maximum mark: 1]	Reference code	19M.1A.HL.TZ1.13
Level	HL	Paper	1A	Time zone	TZ1
Command term		Question number	13	Adapted from	N/A

13.

[Maximum mark: 1]

19M.1A.HL.TZ1.13

How many carbon atoms are sp³, sp² and sp hybridized in the molecule?

[1]

Markscheme

A

Examiners report

Identify carbons with sp, sp² , and sp³ hybridization was well answered.

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.