$${[Fe{(CN)_6}]^{4 - }}$$

$${[Fe{(CN)_6}]^{3 - }}$$

$${[Ti{(CN)_6}]^{3 - }}$$

$${[Ni{(CN)_4}]^{2 - }}$$

$${[Co{(CN)_6}]^{3 - }}$$

Among the given complexes, number of paramagnetic complexes is ____________.

(a) CoCl₃.4NH₃,    (b) CoCl₃.5NH₃,      (c) CoCl₃.6NH₃    and    (d) CoCl(NO₃)₂.5NH₃.

Number of complex(es) which will exist in cis-trans form is/are _______________.

Number of complexes which will exhibit synergic bonding amongst, $$[Cr{(CO)_6}]$$, $$[Mn{(CO)_5}]$$ and $$[M{n_2}{(CO)_{10}}]$$ is ___________.

Acidified potassium permanganate solution oxidises oxalic acid. The spin-only magnetic moment of the manganese product formed from the above reaction is ____________ B.M. (Nearest integer)