$FeC{l}_3$ solution gives blood red colour with $N{H}_{4}SCN$. If $H_{2}S$ gas is passed and filtered, then filtrate does not give red colour with $N{H}_{4}SCN$.

If true enter 1, else enter 0.

Q. $Fe{Cl}_3$ gives blood red colour with ${NH}_{4}SCN$. If $H_{2}S$ gas is passed and filtered then filtrate does not give red colour with ${NH}_{4}SCN$.

Q. If true enter 1, else enter 0.
$FeC{l}_3$ gives blood red colour of formula $\left[Fe\right(CNS\left)\right(H_{2}O{)}_y{]}^{2+}$ with KCNS. Here y = 5.

Q. (A) (yellow coloured solution) changes to light green coloured solution (B) on passing $H_{2}S$ gas. (A) and (B) both give white precipitate with $Ba{Cl}_2$ solution, insoluble in conc. $HCl$. A gives blue coloured ppt (C) with $K_4\left[{Fe\left(CN\right)}_6\right]$, (B) does not. Here,
(A) : ${FeCl}_3$
(B) : ${FeCl}_2$
(C) : $F{e}_4\left[Fe\right(C{N}_6){]}_3$
If true enter 1, else enter 0.

Q. ${NH}_{4}SCN$ gives red colour with ${Fe}^{3+}$ Due to the formation of $[{Fe\left(SCN\right)]}^{2+}$.

Q. $C{r}_2(S{O}_4{)}_3$ solution produce green colour with $N{a}_{2}O\left(excess\right)$ and yellow colour with $N{a}_2{O}_2\left(excess\right)$.
If true enter 1 else 0.