Which of the following ions would form colourless complexes?
`Cu^(2+), Zn^(2+), Ti^(3+), Ti^(4+), Cd^(2+)`

Which of the following ions is coloured iņ aqueous solution? i) Sc^(3+) ii) Co^(2+) iii) Cu^(+)

Predict which of the following will be coloured in aqueous solution ? Ti^(3+), V^(3+), Cu^(+), Sc^(3+), Mn^(2+), Fe^(3+) and Co^(2+) . Give reasons for each.

The complex [Cu(NH_(3))_(4)]^(2+) is :

Which of the following reagents form a precipitate with a solution containing Pb^(2+) ion?

Give reason: Ti^(+4) ion is colourless.

The standard electrode potentials of some electrodes are : {:("Electrode",Zn^(2+)"|"Zn,Cd^(2+)"|"Cd,Ag^(+)"|"Ag,Fe^(2+)"|"Fe),(E^(@)(V),-0.76,-0.40,0.80V,-0.44V):} Which of the following cells are feasible and give their E^(@) cell ? (i) Zn|Zn^(2+)||Cd^(2+)|Cd (ii) Fe|Fe^(2+)||Zn^(2+)|Zn (iii) Cd|Cd^(2+)"||"Ag^(+) (iv) Fe|Fe^(2+)"||"Ag^(2+)|Ag

Which of the following statement is not correct for [Ni(CN)_(4)]^(2-) and [NiCl_(4)]^(2-) complexes.

Which of the following reactions occurs at anode in the electrochemical cell reaction ? Zn(s)+Cu^(2+)(aq)toZn^(2+)(aq)+Cu(s)

Complete the following equations: Cu_2O+Cu_2Srarr