Match List I with List II LIST-I Complex LIST-II Colour A. Mg NH 4 PO 4 I. brown B. K 3 Co NO 2 6 II. white…

The formula $\mathrm{Mg}\left({\mathrm{NH}}_4\right){\mathrm{PO}}_4$ represents magnesium ammonium phosphate it is white in colour. ${\mathrm{K}}_3\left[\mathrm{Co}{\left({\mathrm{NO}}_2\right)}_6\right]$ is known as potassium hexanitritocobaltate(III). It is yellow in colour. The yellow colour is due to the presence of the cobalt ion (Co3+) in the complex, which absorbs certain wavelengths of light and reflects yellow light.  $\mathrm{MnO}{\left(\mathrm{OH}\right)}_2$is brown in colour. ${\mathrm{Fe}}_4{\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}_3$ is blue in colour.