DP Chemistry (first assessment 2025)

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Question 21M.1A.SL.TZ1.10

Date	May 2021	Marks available	[Maximum mark: 1]	Reference code	21M.1A.SL.TZ1.10
Level	SL	Paper	1A	Time zone	TZ1
Command term	Identify	Question number	10	Adapted from	N/A

10.

[Maximum mark: 1]

21M.1A.SL.TZ1.10

Which compound contains both ionic and covalent bonds?

A. $MgO$

B. ${CH}_{2} {Cl}_{2}$

C. ${CH}_{3} COOH$

D. $NaOH$

[1]

Markscheme

D

Syllabus sections

Structure 2. Models of bonding and structure » Structure 2.1—The ionic model » Structure 2.1.3—Ionic compounds exist as three-dimensional lattice structures, represented by empirical formulas. Explain the physical properties of ionic compounds to include volatility, electrical conductivity and solubility.