Where can I see the private key for the ETH address?

With Wombat, you won’t ever need a private key to have a fully functional Ethereum wallet. Should you still access it, you can unlock it in Wombat’s Settings -> Keys & Accounts -> Ethereum. 

Still not quite what you were looking for? We’ll be happy to help! Please, include your EOS and/or Telos account name, the device you’re using Wombat on, Wombat version (you can see it in the lower section of Settings), as well as your sign-up method (Gmail, Facebook, Twitter or Apple ID) and details of the issue you’re facing. Our Support Team will get back to you within 24 hours.