DP Chemistry (first assessment 2025)

Test builder »

Question 19M.2.SL.TZ1.4b(iv)

Date	May 2019	Marks available	[Maximum mark: 1]	Reference code	19M.2.SL.TZ1.4b(iv)
Level	SL	Paper	2	Time zone	TZ1
Command term	State	Question number	b(iv)	Adapted from	N/A

b(iv).

[Maximum mark: 1]

19M.2.SL.TZ1.4b(iv)

(b(iv))

MnO₂ is another possible catalyst for the reaction. State the IUPAC name for MnO₂.

[1]

Markscheme

manganese(IV) oxide
OR
manganese dioxide [✔]

Note: Accept “manganese(IV) dioxide”.

Examiners report

Many could correctly name manganese(IV)oxide, but there were answers of magnesium(IV) oxide or manganese(II) oxide.

Syllabus sections

Structure 3. Classification of matter » Structure 3.2—Functional groups: Classification of organic compounds » Structure 3.2.5—“IUPAC nomenclature” refers to a set of rules used by the International Union of Pure and Applied Chemistry to apply systematic names to organic and inorganic compounds. Apply IUPAC nomenclature to saturated or mono-unsaturated compounds that have up to six carbon atoms in the parent chain and contain one type of the following functional groups: halogeno, hydroxyl, carbonyl, carboxyl.