X [ conc. H _3 PO _4] Y [ AgNO _3] FeCl _3 vapour cases Z (coloured vapours) cases Q…

CHEMISTRY · Single correct · GCSE · Chemistry · Chemical Analysis · Chemical Analysis

Problem

X \xrightarrow[\text{conc. H}_3\text{PO}_4]{\Delta} Y \xrightarrow[\text{AgNO}_3]{\text{FeCl}_3\ \text{vapour}} \begin{cases} Z \uparrow \\ \text{(coloured vapours)} \end{cases}

\downarrow

\downarrow

(soluble in excess conc.

\text{NH}_3

soln.) Which of the following anion cannot be in

X

? (1)

\text{F}^-

(2)

\text{Cl}^-

(3)

\text{Br}^-

(4)

\text{I}^-