What is the JBoss AS version that can be used to study Enterprise Javabeans 3.1. I want to study EJB 3.1 what is the JBoss version for EJB 3.1, How to find that out?
Use the latest released version http://wildfly.org/downloads/. It has support for Java EE 7 (which includes EJB 3.2 and that implies support for EJB 3.1 too).