Match the following `:`
Indicate the color produced in the following reactions. Shade the color code .
A. `{:(,R,B,G,Y),((A)FeCl_(3)+NH_(4)SCN+"dil.HCl,1,2,3,4):}`
B. `{:(,R,B,G,Y),((B) FeSO_(4)+K_(4)[Fe(CN)_(6)],1,2,3,4):}`
C. `{:(,R,B,G,Y),((C) Pb(NO_(3))_(2)+K_(2)CrO_(4),1,2,3,4):}`
D. `{:(,R,B,G,Y),((D) K_(2)Cr_(2)O_(7)+"conc." H_(2)SO_(4) +H_(2)O_(2)+"Isoamyl alcohol",1,2,3,4):}`
