Y10 - Periodic Table - 4 (Group 7)

What colour is fluorine at room temperature?

• pale yellow

• pale green

• red-brown

• grey

What colour is chlorine at room temperature?

• pale yellow

• pale green

• red-brown

• grey

What colour is bromine at room temperature?

• pale yellow

• pale green

• red-brown

• grey

What colour is iodine at room temperature?

• pale yellow

• pale green

• red-brown

• grey

Which two halogens are gases at room temperature?

• fluorine

• chlorine

• bromine

• iodine

Which halogen is a liquid at room temperature?

• fluorine

• chlorine

• bromine

• iodine

Which halogen is a solid at room temperature?

• fluorine

• chlorine

• bromine

• iodine

Which of the halogens is the most reactive?

• fluorine

• chlorine

• bromine

• iodine

For which of the following combinations of reactants will a chemical reaction take place?

• chlorine + sodium bromide

• bromine + sodium chloride

• iodine + sodium bromide

• iodine + sodium chloride

With which pair of reactants will you see a colour change from colourless to yellow?

• chlorine + sodium bromide

• chlorine + sodium iodide

• bromine + sodium iodide

• bromine + sodium chloride