Which one of the following transition metal ions is diamagnetic? `Co^(2+)`, `Ni^(2+)`, `Cu^(2+)`, `Zn^(2+)`

Which of the following transition metal ions is colourless ?

Which of the following substances are diamagnetic? Bi, Al, Na, Cu, Ca and Ni.

How many of the following ions have spin mangnetic moment more than 4 B.M . Ti^(3+), Cu^(+), Ni^(2+),Fe^(3+),Mn^(2+), Co^(2+)

Which of the following reagents willnot be useful in separating a mixture of Zn^(2+) and Cu^(2-) ?

Fe can displace which of the following ions from their aqueous solutions? (a) Na^(+) (b) Zn^(2+) (c) Cu^(2+) (d) Ag^(+)

Which of the following is an inner orbital complex as well as diamagnetic in behaviour [Atomic numbers Zn = 30, Cr = 24, Co = 27, Ni = 28.]

Among the following series of transition metal ions, how many metals ions have d^(2) electronic configuration Fe^(4+), V^(3+), Sn^(2+), Au^(3+)Ti^(2+), As^(3+), Cr^(3+), Mn^(5+)Co^(3+), Zr^(2+), Cd^(2+), Mo^(4+), La^(2+), Ta^(4+), Co^(6+), Ni^(4+)

Which one of the following statements are true? (1) Transition metals from alloys (2) Transition metals form complexes (3) Zn, Cd and Hg are transition metals (4) K_(2)[PtCl_(6)] is a well known compound, but corresponding nickel compound is not known.

Which of the following ions would form (i) coloured and (ii) colourless complexes in water? CU^(2+),Zn^(2+),Ti^(3+),Ti^(+4),Cd^(2+),Mn^(2+)

Describe giving reason which one of the following pairs has the property indicated? (a). Fe or Cu has higher melting point. (b). Co^(2+) or Ni^(2+) has lower magnetic moment.