91Ó°ÊÓ

For the coordination compound \(\mathrm{PtCl}_{4} .5 \mathrm{NH}_{3}\), the charge on cation is found to be \(+3\). How many ions are furnished on ionization of the complex?

\(\mathrm{Na}_{2} \mathrm{O}\) has antifluorite structure. The coordination number of oxide ion is ____ .

The number of geomatrical isomers exhibited by \(\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\) is _____.

Amongst the following, the total number of species which are diamagnetic is ______ . \(\mathrm{K}_{4}[\mathrm{Fe}(\mathrm{CN})], \mathrm{K}_{3}\left[\mathrm{Cr}(\mathrm{CN})_{6}\right], \mathrm{K}_{3}\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\) \(\mathrm{K}_{2}\left[\mathrm{Ni}(\mathrm{CN})_{4}\right],\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}, \mathrm{K}_{2} \mathrm{TiF}_{6}\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)

When excess of \(\mathrm{KCN}\) is added to aqueous solution of copper sulphate a co-ordination compound \(\mathrm{K}_{\mathrm{x}}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) is formed. The value of \(\mathrm{x}\) is ____ .

The number of unpaired electrons in the complex ion \(\left[\mathrm{CoF}_{6}\right]^{3-}\) is ____ .

In \(\left[\mathrm{Cr}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\), the isomerism shown is (a) optical (b) ionization (c) geometrical (d) ligand

A similarity between optical and geometrical isomerism is that (a) if in a compound one is present then the other will also be present (b) each gives equal number of isomers for a given compound (c) both are included in stereo isomerism (d) they have no similarity

A square planar complex is formed by hybridization of which atomic orbitals? (a) s, px, py, dx \(^{2}-y^{2}\) (b) \(s, p x, p y, d y z\) (c) \(s, p x, p y, d z^{2}\) (d) \(s, p x, p y, d x y\)

The type of isomerism present in nitropentaamine chromium (III) chloride is (a) ionization (b) optical (c) polymerization (d) linkage