Q. Which of the following statements is not true in regard to transition elements?
A) All their ions are colourless
B) They show variable valency
C) They readily form complex compounds
D) Their ions contain partially filled $d$-elelctron levels
Explanation
(c)
“All their ions are colourless” this sentence is false because they are 90% coloured and only few are colourless
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.