Question

In context with the transition elements, which of the following statements is incorrect ?

(a) In addition to the normal oxidation states, the zero oxidation state is also shown by these elements in complexes.

(b) In the highest oxidation states, the transition metals show basic character and form cationic complexes.

(c) In the highest oxidation states of the first five transition elements ( Sc to Mn), all the 4s and 3d electrons are used for bonding.

(d) Once the d5 configuration is exceeded, the tendency to involve all the 3d electrons in bonding decreases.

Answer 1

(b) : When the transition metals are in their highest oxidation state, they no longer have tendency to give away electrons, thus they are not basic but show acidic character and form anionic complexes.