The general oxidation state of Lanthanide elements is +3. Which of following is incorrect statement for them ?
(A) Ln (III) hydroxides are mainly basic in character.
(B) Because of the large size of the Ln (III) ions, the bonding in its compounds is ionic in character.
(C) Ln (III) Compounds are generally colour less.
(D) The ionic sizes of Ln (III) decreases with increase in atomic number.
