A solution of a salt on treatment with NH 4 SCN gives red coloured compound and on…
Chemistry · NEET · NTA Exams — d- and f- Block Elements
A solution of a salt on treatment with NH4SCN gives red coloured compound and on treatment with a solution of K4Fe(CN)6 develops blue colouration. The red and blue colours respectively are:
- Ni(SCN)2 and Ni2[Fe(CN)6]
- Fe(SCN)3 and Fe4[Fe(CN)6]3
- Co(SCN)2 and Co2[Fe(CN)6]
- Fe(SCN)2 and Fe2[Fe(CN)6]
Answer
(B) Fe(SCN) 3 and Fe 4 [Fe(CN) 6 ] 3
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