CAIE A-Level Chemistry AS 11.2.1 Reactivity of the Elements As Oxidising Agents Questions

Practise ranking chlorine, bromine and iodine as oxidising agents and predicting halide displacement reactions.

Exam points

state that oxidising strength decreases from chlorine to bromine to iodine down Group 17
predict that a stronger halogen oxidant removes electrons from a weaker halide reducing agent
write the ionic displacement equation and identify which halogen is reduced to halide ions

[Maximum number: 1]

ICl is made when $\mathrm{Cl}_{2}$ and $\mathrm{I}_{2}$ react together.

\mathrm{Cl}_{2}+\mathrm{I}_{2} \rightleftharpoons 2 \mathrm{ICl}

ICl reacts with water.

5 \mathrm{ICl}+3 \mathrm{H}_{2} \mathrm{O} \rightarrow 5 \mathrm{HCl}+\mathrm{HIO}_{3}+2 \mathrm{I}_{2}

Which row is correct?

oxidation number of I in ICl

reaction occurring when ICl reacts with $\mathrm{H}_{2} \mathrm{O}$

the iodine atoms are oxidised to form $\mathrm{I}_{2}$

the iodine atoms are oxidised to form $\mathrm{HIO}_{3}$

-1

the chlorine atoms are reduced to form HCl

-1

the iodine atoms are oxidised to form $\mathrm{HIO}_{3}$

All question bank results loaded