Page 301 - SUBSEC October 2017_Neat

UNIT 1
MODULE 3: CHEMISTRY OF THE ELEMENTS (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

Group VII Elements cont’d

Students should be able to:

4.2. 1.1 explain the relative Include reactions with Use solutions of the
reactivities of the elements sodium thiosulphate and elements with bleach,
θ
as oxidising agents; refer to E values. bromine water and iodine
solution.

4.3. 1.1 describe the reactions of Include equations.
the elements with
hydrogen;

4.4. explain the relative Include bond energies in
thermal stabilities of the explanations.
hydrides;

4.5. 1.13 describe the reactions of Perform experiments of
the halide ions with: halide ions with aqueous
1.14 AgNO3 followed by aqueous
(a) aqueous solution of ammonia.
AgNO3 followed by
aqueous ammonia;
and,

(b) conc. sulfuric acid;
and,

4.6. describe the reactions of Include changes in oxidation
chlorine with cold and with number and the process of
hot aqueous solution of disproportionation.
sodium hydroxide. Refer to Module 1, Specific
Objective 4.1.

5. First Row Transition Elements

Students should be able to:

5.1. 1.15 define the term transition D-block elements forming
element; one or more stable ions with
incomplete d-orbitals.

5.2. describe the Include variation in
characteristics of oxidation number, complex
transition elements; formation, coloured
compounds, catalytic
activity, magnetic
properties.

CXC A11/U2/17 32