The Halogens (OCR A-Level Chemistry A): Quizzes

Red-brown liquid

Stronger London forces from more electrons

7

Orange colour forms as $\text{Br}_2$ produced

$\text{Cl}_2 > \text{Br}_2 > \text{I}_2$

Same element oxidised and reduced together

$\text{HClO}$ and $\text{HCl}$

Kills harmful bacteria and prevents disease

Violet

Increases ($\text{I}^- > \text{Br}^- > \text{Cl}^-$)