$A$ monodentate ligand has

Which of the following statements is incorrect?

Which statement from the following is true for the complex hexamminecobalt$(III)$ chloride?

On treating $100 \ mL$ of $0.1 \ M$ aqueous solution of the complex $CrCl_3 \cdot 6 H_2 O$ with excess of $AgNO_3$,$2.86 \ g$ of $AgCl$ was obtained. The complex is:

The coordination number and the oxidation state of the element $E$ in the complex $[E(en)_2(C_2O_4)]NO_2$ (where $en$ is ethylene diamine) are,respectively:

$A$ complex has a composition corresponding to the formula $CoBr_2Cl \cdot 4NH_3$. What is the structural formula if conductance measurements show two ions per formula unit? Silver nitrate solution gives an immediate precipitate of $AgCl$ but no $AgBr$.