What is the formula of sodium nitroprusside?

The types of bonds present in ${K_4}[Fe(CN)_6]$ are:

Which of the following pairs of complexes gives pale yellow and white precipitates respectively when their aqueous solutions are treated with $0.1 \ M \ AgNO_3$?

The ratio of the number of cations,anions,and water molecules respectively in potash alum is:

$A$ $200 \ mL$ solution $X$ contains $0.02 \ mol$ of $[Co(NH_3)_5Br]Cl_2$ and $0.02 \ mol$ of $[Co(NH_3)_5Cl]SO_4$. If solution $X$ is treated with excess $AgNO_3$ and excess $BaCl_2$,what will be the number of moles of precipitates $Y$ and $Z$ formed,respectively?

Which of the following ligands is neutral?