Burlington Junior College
Subject: Chemistry Class:12th Science
Class test for 10 marks
Q1) what is d and f-Block element
Q2) Why d-Block elements is known as transition elements
Q3) Distinguish between lanthanoids and Actinoids
Q4) Write down Physical properties of transition elements
Q5) Zn+2 salts are white while Cu+2 salts are coloured. Why?
