D-And F-Block Elements Ques 375
Question: Which one of the following characteristics of the transition metals is associated with their catalytic activity
[CBSE PMT 2003]
Options:
A) Variable oxidation states
B) High enthalpy of atomization
C) Paramagnetic behaviour
D) Colour of hydrated ions
Show Answer
Answer:
Correct Answer: A
Solution:
Variable oxidation states give free valencies.
