1.

Cold ferrous sulphate solution on absorption of NO develops brown colour due to the formation of

Answer»

paramagnetic `[Fe(H_(2)O)_(5)(NO)]SO_(4)`
diamagnetic `[Fe(H_(2)O)_(5)(N_(3))]SO_(4)`
paramagnetic `[Fe(H_(2)O)_(5)(NO_(3))](SO_(4))_(2)`
diamagnetic `[Fe(H_(2)O)_(4)(SO_(4))]NO_(3)`

SOLUTION :Brown ring is `[Fe(H_(2)O)_(5)(NO)]SO_(4)`


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