In the 18th century, which metal was often thrown into the sea to avoid counterfeiting?
Correct answer: Platinum

Ali *Regulus* Mirza
"It... commonly contains... platinum..."???

Robofan301
Ali *Regulus* Mirza, They are referring to the ore in which it is naturally found. It could be stated better.

Unreal Neil.
LillySparrow, All that glitters...

Be wise
Is that the metal in catalytic converters?

LillySparrow
Robofan301, yeah they don’t really “word or state” things/facts very well

RAM
Ali. Please complete your question. Most people can see it is just a statement at the moment. You have clearly by mistake missed a few words that would change it into a question. Then the " question mark" at the end would be correct.