Question

Which of the following ions will exhibit colour in aqueous solutions?
(a) La³⁺ (Z = 57)
(b) Ti³⁺ (Z = 22)
(c) Lu³⁺ (Z = 71)
(d) Sc³⁺ (Z = 21)

Answer 1

A IS CORRECT ANSWER........

Answer 2

${\huge {\mathfrak {Answer :-}}}$

➡️ Option (A)

That's it..