Chemistry Entrance Exam

Electroplating is a process whereby a metal surface is coated with a non-metal.

• True

• False

The electrode that contains the item to be electroplated

• Anode

• Cathode

The electrode that contains the plating metal

• Anode

• Cathode

Which is not a reason for metal plating?

• decorative purposes

• prevent rust and corrosion

• to make the metal stronger

If you were plating with copper, which electrolyte could be used

• Copper sulfate

• Nickel sulfate

• Hydrochloric acid

• Sulfuric acid

If the fork is to be electroplated with silver metal, what electrolyte should be used?

• Molten calcium chloride

• Aqueous silver nitrate

• Sodium chloride solution

• Copper(II) sulphate solution

Tags

NGSS.HS-PS2-5

Which block on this periodic table represents the transition metals?

• s block

• d block

• p block

• f block

Which of the following is not a transition metals?

• sodium

• chromium

• iron

• nickel

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

true or false: The transition metals do not form coloured compounds. They are all white or grey.

• true

• false

When compared to group 1 metals, the transition metals are...

• weaker

• stronger