Which of the following transition metal ions is colourless?
A.
$${V^{2 + }}$$
B.
$$C{r^{3 + }}$$
C.
$$Z{n^{2 + }}$$
D.
$$T{i^{3 + }}$$
Answer :
$$Z{n^{2 + }}$$
Solution :
$$Z{n^{2 + }} \to 3{d^{10}}$$ has no unpaired electrons for excitation.
Releted MCQ Question on Inorganic Chemistry >> D and F Block Elements
Releted Question 1
When same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volume of hydrogen evolved is