The Student Room Group
Reply 1
does the book have anything about ammoniacal silver nitrate?
Reply 2
http://www.answers.com/topic/tollens-reagent?method=8

:rolleyes: Are you connected to the World Wide Web?
Ketones cannot be easily oxidised.

Aldehydes can be oxidised and leave a silver mirror on the inside of a test tube.

I think tollen's reagent is ammonical silver nitrate yeah.