Question

What does Portia tell Nerissa to keep on the casket to prevent the Duke of Saxony 's nephew from teaching the casket ?​

Answer 1

Portia in order to safeguard against the worst she tells Nerissa to place a tall glass of Rhenish wine on the wrong casket. Portia is sure that the German suitor will not be able to resist the temptation of the wine even if the picture of the Devil himself is inside the casket. She will do anything rather than be married to a drunkard.

The suitors have informed Nerissa of their decision to back to their homes not to trouble Portia with any more suit unless her father's decree concerning the caskets can be set aside and they may woo her in an ordinary way.

Answer 2

Answer:

Portia tells Nerissa to keep a deep glass of Rhenish wine   in the wrong casket .