The secondary valency and the number of hydrogen bonded water molecule(s) in CuSO₄ . 5H₂O, respectively, are :

The correct structures of trans-[NiBr₂(PPh₃)₂] and meridonial-[Co(NH₃)₃(NO₂)₃], respectively, are

Match List - I with List - II :

	List - I		List - II
(a)	$$[Co{(N{H_3})_6}][Cr{(CN)_6}]$$	(i)	Linkage isomerism
(b)	$$[Co{(N{H_3})_3}{(N{O_2})_3}]$$	(ii)	Solvate isomerism
(c)	$$[Cr{({H_2}O)_6}C{l_3}$$	(iii)	Co-ordination isomerism
(d)	$$cis - {[CrC{l_2}{(ox)_2}]^{3 - }}$$	(iv)	Optical isomerism

Choose the correct answer from the options given below :

In which of the following order the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment?

(i) [FeF₆]^3$$-$$

(ii) [Co(NH₃)₆]³⁺

(iii) [NiCl₄]^2$$-$$

(iv) [Cu(NH₃)₄]²⁺