PBL Chemical Reactions: Quiz 2

As you go DOWN Group 1, the alkali metals:

• become MORE reactive

• become LESS reactive

• have the SAME reactivity

Which of the following is NOT a property of the Alkali Metals?

• low melting points

• soft

• low density

• magnetic

What COLOUR flame do potassium salts show when put into a Bunsen flame?

• Red

• Apple Green

• Lilac

• Yellow

As you go DOWN Group 7, the halogens:

• become MORE reactive

• become LESS reactive

• have the SAME reactivity

Which of the following is NOT a property of the halogens?

• produce coloured vapours

• low boiling points

• toxic

• conduct electricity

What colour precipitate does a BROMIDE salt form when silver nitrate is added to it?

• Cream

• White

• Yellow

• Puce