Final answer:
The ghost of Christmas past did not show Scrooge his ponderous chain; that was done by the ghost of Jacob Marley.
Step-by-step explanation:
The statement that the ghost of Christmas past showed Scrooge his ponderous chain is false. In Charles Dickens's 'A Christmas Carol,' it was the ghost of Jacob Marley, Scrooge's former business partner, who appeared to Scrooge bearing a heavy chain representing his lifetime of greed and selfishness.
The Ghost of Christmas Past, instead, takes Scrooge on a journey to revisit his past Christmases to reflect on his life.