Chemistry 0620 · IGCSE · Group VII properties

Group VII properties — practice question

Chlorine, bromine and iodine belong to the halogens.
(a)[2]

Deduce the physical state of bromine at $+6\,^{\circ}\text{C}$. Explain your answer.

(b(i))[2]

Complete the word equation for the reaction of chlorine with potassium iodide. chlorine + potassium iodide $\rightarrow$ ................. + .................

(b(ii))[1]

Suggest why iodine does not react with aqueous potassium bromide.

(c)[2]

Complete the table, then calculate the relative molecular mass of Lithol fast yellow.

(d(i))[1]

Draw a cross on the diagram to indicate where the dye mixture is placed at the beginning of the chromatography.

(d(ii))[1]

Suggest a solvent that would be suitable for use.

(d(iii))[1]

Describe what you would see as the experiment continues.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: A liquid

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI