The number of ions produced in water by dissolution of the complex having the empirical formula,$CoCl_3 \cdot 4NH_3$,is

Which of the following statements is true about $[Cu(NH_3)_4]SO_4$?

In which of the following compounds is the oxidation state of $Fe$ zero?

The complex salt $[Cr(H_2O)_4Br_2]Cl$ gives a test for which of the following ions in its aqueous solution?

The $NO$ molecule,

Excess of silver nitrate solution is added to $100 \ mL$ of $0.01 \ M$ pentaaqua chloro chromium $(III)$ chloride solution. The mass of silver chloride obtained in grams is [Atomic mass of silver is $108$].