Q. Variable valency in general, is exhibited by
A) Transition elements
B) Gaseous elements
C) Non-metals
D) $s$-block elements
Explanation
The correct answer is Option A: Transition elements.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.