Iago wants Othello to see Cassio and Desdemona together.
True.
Who is Bianca?
A prostitute who is in love with Cassio
Who does Cassio seek out to try and win back over Othello?
Desdemona
Emilia places Desdemona's handkerchief in Cassio's room/
True.
What does Iago suggest that Cassio do to try and get his job back?
Get him alone with Desdemona so they can talk about trying to get his job back.
Why is the handkerchief important to Othello?
It was a gift given to him by his mother, and the first thing he gave to Desdemona.
What does Othello begin to believe is true?
That Desdemona is cheating on him.
Why is it ironic that Othello believes Iago is the only one who is honest towards him?
Iago is the only one who is telling the truth the whole time.
Iago convinces Othello that Cassio has the handkerchief.
True, he states that he saw Cassio wiping his beard with it.
Why does Othello reject the handkerchief that Desdemona offers to him when he says he is sick?
Desdemona gives him a different handkerchief, which confirms to him that she gave his to Cassio.
What two pieces of 'evidence' does Iago offer for his suggestion that Cassio and Desdemona are having an affair?
That he heard Cassio ask Desdemona to hide their love, And that he saw Cassio wiping his beard with Desdemona's handkerchief.