_____________ element is defined as the one which has incompletely filled d orbitals in its ground state or in any one of its oxidation states.

In the silver plating of copper, K[Ag(Cn)₂] is used instead of AgNO₃. The reason is.

Nitriding is the process of surface hardening of steel by treating it in an atmosphere of

Which of the following metals corrodes readily in moist air?

The elements from the group 3 to group 12 are known as _________ elements.

In which of the following compounds transition metal has zero oxidation state?

Ti⁴⁺ ions are found to be __________

The aqueous solution containing which one of the following ions will be colourless?

                        (At no: sc = 21, Fe = 26, Ti = 22, Mn = 25)

Of the following transition metals, the maximum number of oxidation states are exhibited by

Cuprous compounds such as CuCI, CuCN and CuSCN are the only salts stable in H₂O due to