If on adding FeCl3 solution to acidified Lassaigne solution, a blood red colouration is produced, it indicates the presence of

Question

If on adding FeCl3 solution to acidified Lassaigne solution, a blood red colouration is produced, it indicates the presence of (A) S (B) N (C) N and S (D) S and Cl

Tardigrade Admin · Accepted Answer

3NaCNS + Fe3+ → underset text(Blood red)Fe(SCN)3+ 3Na+

Q. If on adding $F e C l_{3}$ solution to acidified Lassaigne solution, a blood red colouration is produced, it indicates the presence of

$S$

$N$

$N$ and $S$

$S$ and $Cl$

$3 N a CNS + F e^{3 +} \to (Blood red) F e (SCN)_{3} + 3 N a^{+}$

Q. If on adding FeCl3​ solution to acidified Lassaigne solution, a blood red colouration is produced, it indicates the presence of

S

N

N and S

S and Cl

3NaCNS+Fe3+→(Blood red)Fe(SCN)3​​+3Na+

Q. If on adding $F e C l_{3}$ solution to acidified Lassaigne solution, a blood red colouration is produced, it indicates the presence of

$S$

$N$

$N$ and $S$

$S$ and $Cl$

$3 N a CNS + F e^{3 +} \to (Blood red) F e (SCN)_{3} + 3 N a^{+}$