The silver UK coins and UK copper coins are respectively:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Cu/Ni alloy & copper-coated steel.
Transition metals and their alloys are widely used for making coins because they are hard, resist corrosion and are cheaper than the precious metals the coins imitate.
The “silver” coins are cupronickel (a Cu/Ni alloy with a silvery colour); the “copper” coins are steel with a thin copper coat.
NCERT (2026-27 edition):
Some Applications of d- and f-Block Elements
