Match the following columns

Answer

A, B, C, D

Explanation

`(AtoS)`:
`Na_(2)[Fe(CN)_(5)NO]+Na_(2)St0Na_(4)[Fe(CN)_(5)NOS]`
(Violet colouration)
`(BtoR) FeCl_(3)+3NaSCNtoFe(SCN)_(3)+NaCl`
(Blood red colour)
`(CtoQ)`
`3Na_(4)[Fe(CN)_(6)]+4Fe^(3+)toFe_(4)[Fe(CN)_(6)]_(3)+12Na^(+)`
Blue colouration)
`(DtoP)`
`Na_(3)+(NH_(4))_(2)MoO_(4)tooverset(HNO_(3))(to)(NH_(4))_(3)PO_(4).12MoO_(3)`
(Yellow ppt.)