D-And F-Block Elements Ques 318
Question: If the colours of salts of transition elements are due to the presence of unpaired electrons in the transition metal ions, which of the following ions will be colourless in aqueous solution
Options:
A) $ T{{i}^{3+}} $
B) $ T{{i}^{4+}} $
C) $ F{{e}^{2+}} $
D) $ F{{e}^{3+}} $ (The at. no. of $ Ti $ and $ Fe $ are 22 and 26 respectively)
Show Answer
Answer:
Correct Answer: B
Solution:
$ T{{i}^{+4}},\to ,3d^{0}4s^{0} $ \ no unpaired $ {{e}^{-}} $ .
