C2-10 Displacement reactions of group 7

Which of the following is the correct definition of displacement?

• when a reactive element pushes out, displaces, a less reactive element from a reactive element that contains the less reactive element

• when a more reactive element displaces, or pushes out, a less reactive element from a compound that contains the less reactive element

• when a less reactive element displaces, or pushes out, a less reactive element from a compound that contains the less reactive element

• when a more reactive element displaces, or pushes out, a more reactive element from a compound that contains the less reactive element

In which reaction shown (1-9) would a brown coloration of iodine be observed?

• 1, 2 & 3

• 4 & 5

• 3, 6 & 9

• 3 & 6

Which elements in group 7 are more reactive than chlorine?

• Fluorine

• Chlorine

• Bromine

• Iodine

Which elements in group 7 are less reactive than fluorine?

• Fluorine

• Chlorine

• Bromine

• Iodine

Which elements in group 7 are less reactive than bromine?

• Fluorine

• Chlorine

• Bromine

• Iodine

Which elements in group 7 will be displaced by chlorine?

• Fluorine

• Chlorine

• Bromine

• Iodine

Which elements in group 7 are will be displaced by bromine?

• Fluorine

• Chlorine

• Bromine

• Iodine

Fill in the missing box.

Fill in the missing box.

Astatine is below Iodine in the periodic table. Which prediction(s) about Astatine could be true?

• Astatine is more reactive than iodine

• Astatine is less reactive than Bromine

• Astatine will not displace Chlorine

• Astatine is not a halogen