In the novel The Great Gatsby, what does white symbolize?I know that it symbolizes purity, but I need more key points to write a full essay. Please...

Actually, I think that white does not symbolize purity in
this particular book.  Of course, you are right to say that white typically does
symbolize purity, but in this book I think the symbolism is turned on its head some.  In
this book, I think white symbolizes impurity or is being used in some ironic
way.

Take, for example, how we see Daisy and Jordan in
their white dresses in Chapter 1.  But we know neither of them is pure.  I don't just
mean this sexually -- I mean that they are impure at heart.  Jordan is a cheater, for
example, and Daisy has married a man she does not love just because of money -- they're
both sort of false people.