Describe how the colour of the Group 17 elements changes as you go down the group.
Describe how the relative reactivity of the elements in Group 17 as oxidising agents changes.
Chlorine reacts with hot tin metal to make tin(IV) chloride, $\text{SnCl}_4$. $\text{SnCl}_4$ is a colourless liquid at room temperature and reacts vigorously with water to give an acidic solution. Suggest the structure and bonding in $\text{SnCl}_4$. Explain your answer.
Describe the observations when dilute $\text{AgNO}_3(aq)$ is added to $\text{NaBr}(aq)$ and then aqueous ammonia is added.
$\text{NaCl}$ reacts with concentrated $\text{H}_2\text{SO}_4$ to give $\text{HCl}$ and $\text{NaHSO}_4$. Explain why the reactions of concentrated $\text{H}_2\text{SO}_4$ with $\text{NaCl}$ and with $\text{NaI}$ are different. Your response should refer to the role of the sulfuric acid in each case.
Describe and explain the pattern in the boiling points of the hydrogen halides, $\text{HCl}$, $\text{HBr}$ and $\text{HI}$.
Describe and explain the pattern in the thermal stabilities of the hydrogen halides, $\text{HCl}$, $\text{HBr}$ and $\text{HI}$.
Explain the meaning of the term homogeneous.
Pentan-3-ol, $\text{C}_2\text{H}_5\text{CH(OH)}\text{C}_2\text{H}_5$, reacts slowly with $\text{HCl}$ to produce a secondary halogenoalkane. Complete the reaction equation using structural formulae: $\text{C}_2\text{H}_5\text{CH(OH)}\text{C}_2\text{H}_5 + ...
Draw the structure of the tertiary alcohol that is an isomer of pentan-3-ol.
Suggest the type of reaction shown by tertiary alcohols with Lucas’s reagent.