Chemistry - Salt Analysis Question with Solution | TestHub

Match List I with List II $\begin{array}{llll}& \text{List-I}& & \text{List-II}\\ & \text{(Name of the test)}& & \text{(Reaction sequence involved) [M is metal]}\\ \text{ A. }& \text{ Borax bead test }& \text{ I. }& {\mathrm{MCO}}_3\to \mathrm{MO}\stackrel{\mathrm{Co}{\left({\mathrm{NO}}_3\right)}_2}{\to }\mathrm{CoO}\cdot \mathrm{MO}\\ \text{ B. }& \begin{array}{l}\text{ Charcoal }\\ \text{ cavity test }\end{array}& \text{ II. }& {\mathrm{MCO}}_3\to {\mathrm{MCl}}_2\to {\mathrm{M}}^{2+}\\ \text{ C }& \begin{array}{l}\text{ Cobalt nitrate }\\ \text{ test }\end{array}& \text{ III }& {\mathrm{MSO}}_4\underset{\Delta }{\overset{{\mathrm{Na}}_2{\mathrm{B}}_4{\mathrm{O}}_7}{\to }}\mathrm{M}{\left({\mathrm{BO}}_2\right)}_2\to {\mathrm{MBO}}_2\to \mathrm{M}\\ \text{ D. }& \text{ Flame test }& \text{ IV }& {\mathrm{MSO}}_4\underset{\Delta }{\overset{{\mathrm{Na}}_2{\mathrm{CO}}_3}{\to }}{\mathrm{MCO}}_3\to \mathrm{MO}\to \mathrm{M}\end{array}$ Choose the correct answer from the options given below: