Coordination Co...

On treatment of $$100\, mL$$ of $$0.1\, M$$ solution of $$CoCl_{3}.6H_{2}O$$ with excess $$AgNO_{3};1.2\times 10^{22}$$ ions are precipitated. The complex is :

Which one of the following has largest number of isomers? ( $$\mathrm{R}=$$ alkyl group, en $$=$$ ethylenediamine) 

Co-ordination compounds have great importance in biological systems. In this context which of the
following statements is incorrect? 

In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion $$(Ca^{2+})$$ and fluoride ion $$(F^-)$$ are:

Iron carbonyl, $$Fe(CO)_{5}$$ is __________.

The correct increasing order of trans-effect of the following species is:

Which of the following complexes is used to be as an anticancer agent?

The hybridizations of atomic orbitals of nitrogen in $$NO_2^+ ,\ N{ O }_3^-$$ and $$NH_4^+$$ respectively are :

Correct increasing order for the wavelength of absorption in the visible region for the complexes of $$Co^{3+}$$ is?

The hypothetical complex chloro-diaquatriamminecobalt(III) chloride can be represented as: