An example of a double salt is:

In a coordination compound,the coordination number of the metal is equal to:

In the test of $NO_3^-$ ion,a dark brown ring complex is formed. Which of the following statements is incorrect regarding this complex?

Which of the following ligands is not ambidentate?
$(P) = NO_3^-$,$(Q) = NO_2^-$,$(R) = CN^-$,$(S) = SCN^-$

An excess of $AgNO_3$ is added to $100 \ mL$ of a $0.05 \ M$ solution of tetraaquadichloridochromium$(III)$ chloride. The number of moles of $AgCl$ precipitated will be . . . . . . $\times 10^{-3}$. (Nearest integer)

The complex hexamineplatinum$(IV)$ chloride will give how many ions upon ionization?