iGCSE Topic 2b Group 7 MCT DOUBLE REVISION

Which halogen is a liquid at room temperature

What is the correct spelling for the name of the molecule F₂

Which halogen is a pale yellow gas at room temperature

• Fluorine

• Chlorine

• Bromine

• Iodine

Which halogen is a pale green gas at room temperature

• Fluorine

• Chlorine

• Bromine

• Iodine

Which halogen is a red/brown liquid at room temperature

• Fluorine

• Chlorine

• Bromine

• Iodine

Which halogen is a grey solid at room temperature

• Fluorine

• Chlorine

• Bromine

• Iodine

What happens to the boiling points as you go down the group

What hazard is often associated with the halogens

• toxic

• irritant

• harmful

• dangerous

What is the correct formula of lithium chloride

• LiCl

• LiCl₂

• LICl

• Li₂Cl

How many electrons does a chloride ion have in its outer shell

Answer explanation

ChlorINE has 7 in its outer shell, the chlorIDE ION gans 1 electron and so has 8