DP Chemistry (first assessment 2025)

Question EXM.2.HL.TZ0.1

Date	May Example question	Marks available	[Maximum mark: 1]	Reference code	EXM.2.HL.TZ0.1
Level	HL	Paper	2	Time zone	TZ0
Command term	Outline	Question number	1	Adapted from	N/A

[Maximum mark: 1]

EXM.2.HL.TZ0.1

The transition metal copper, Cu, is used in electrical circuits given its high electrical conductivity. Outline why it is preferred over s- and p-block metals.

[1]

Markscheme

«Cu has» additional delocalization of d-electrons ✓

Syllabus sections

Structure 2. Models of bonding and structure

Structure 2. Models of bonding and structure » Structure 2.3—The metallic model » Structure 2.3.3—Transition elements have delocalized d-electrons. Explain the high melting point and electrical conductivity of transition elements.

Structure 2. Models of bonding and structure » Structure 2.3—The metallic model

Question EXM.2.HL.TZ0.1

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Syllabus sections

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