Coordination Co...

The compounds $$[Co(SO_4)(NH_3)_5]Br$$ and $$[Co(SO_4)(NH_3)_5]Cl$$ represents:

TEL is a compound used as

In which one of the following the central atom is $$sp^{3}$$ hydridised?

The solubilities of carbonates decrease down the magnesium group due to decrease in

Which of the following statements are correct?
I) $$CO$$ forms a complex with $$CuCl$$ in $$con. HCl$$
II) $$Ni$$ forms a volatile carbonyl compound with $$CO$$
III) $$CO$$ act as a lewis acid
(IV) $$CO$$ oxidizes $$Cu$$ to $$CuO$$

$$2.33$$g of compound X(empirical formula $$CoH_{12}N_4Cl_3)$$ upon treatment with excess $$AgNO_3$$ solution produces $$1.435$$g of a white precipitate. The primary and secondary valences of cobalt in compound X, respectively, are.
[Given : Atomic mass: $$Co=59, Cl=35.5, Ag=108$$].

The concept hybridisation of orbits of an atom was introduced by ______.

Barium ions, $$CN^-$$ and $$Co^{2+}$$ form an ionic complex. If that complex is supposed to be $$75\%$$ ionised in water with vant Hoff factor 'i' equal to four, then the coordination number of $$Co^{2+}$$ in the complex can be.

When one mole of each of the following complex is treated with an excess of $$AgNO_3$$.which will give maximum amount of $$AgCl$$?

Hexa ammine nickel (II) hexa nitro cobaltate (III) can be written as: