The correct statement(s) from among the following is/are
i) All the d and f-block elements are metals
ii) All the d and f-block elements form coloured ions
iii) All the d and f-block elements form paramagnetic ions

D & f block elements are metals. Only those elements in d&f block forms coloured ions which have empty d orbitals or some impurities. Only those elements are paramagnetic which have unpaired electrons in their electronic configuration.