we arrive at at pudong airport 11.25 am and catch train at Hongqiao 1.40pm. can we make it?

Yes. But you are still suggested to catch the airport shuttle bus line 1 as soon as possible. In usual time, it takes around an hour on the way.

Or in case of traffic jam, you can take Maglev train to arrive at Longyang Road Station. Then transfer to subway line 2 to get to Hongqiao Railway Station. The whole way also takes around an hour.