Question

Which of the following statement regarding transition elements is incorrect?

• A. Their atoms contain partially filled d orbitals.
• B. They are capable of showing variable valencies.
• C. All of their ions are colourless.
• D. They form complexes readily.

Answer 1

The correct option is C All of their ions are colourless.

Properties of transition elements include:

1) Have large charge/radius ratio;

2) Are hard and have high densities;

3) Have high melting and boiling points;

4)Form compounds which are often paramagnetic;

5) Show variable oxidation states;

6) Form coloured ions and compounds;

7) Form compounds with profound catalytic activity;

8)Form stable complexes.

So, option C is an incorrect statement.

Hence option C is correct.