Question

Addition of $1mL$ of $CC{l}_4/CHC{l}_3$ to the sodium carbonate extract of salt neutralised by $dil.HCl$ gives orange brown coloration in the organic layer by vigorous shaken. This confirms the presence of

• A. Sulphate
• B. Nitrate
• C. Iodide
• D. Bromide

Answer 1

The correct option is D Bromide

Add $1mL$ of $CC{l}_4/CHC{l}_3$ and excess of freshly prepared chlorine water dropwise to salt in water or to the $N{a}_{2}C{O}_3$ extract neutralised with dil. HCl.
Vigorous shaking of test tube result in orange brown coloration in the organic layer due to dissolution of bromine.
This confirms the bromide ions.

$2NaBr+C{l}_2\to 2NaCl+B{r}_2$