Q. Among the following pair of ions, the lower oxidation state in aqueous solution is more stable in
A) $V^{2 +},\ VO^{2 +}$
B) $Cr^{2 +},\ Cr^{3 +}$
C) $Ti^{+},\ Ti^{3 +}$
D) $Cu^{+},\ Cu^{2 +}$
Explanation
(c)
$Ti^{+}$ ions are more stable than $Ti^{3 +}$ and thus $Ti^{3 +}$ ions charge to $Ti^{+}$ions thereby acting as oxidizing agents
$Ti^{3 +}$ compounds $+ 2e^{-} \rightarrow Ti^{+}$ compounds
(less stable oxidizing agent) (More stable oxidising agent)
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.