Transition elements are coloured
Due to small size
Due to metallic nature
Due to unpaired $d -$ electrons
All of these
The only cations present in a slightly acidic solutions are $Fe^{3+},\,Zn^{2+}$ and $Cu^{2+}$. The reagent that when added in excess to this solution would identify and separate $Fe^{3+}$ in one step is
The number of hydrogen bonded water molecule(s) associated with $CuSO_4\cdot 5H_2O$ is
The spin only magnetic moment value of $Cr(CO)_6$ is
Which of the following is the correct sequence of atomic weights of given elements
Which of the following pairs involves isoelectronic ions