Halide ions reactions

positive results / observations

AgCl→ white p

AgBr→ cream p IN HNO3

AgI→ yellow p

The reactions of halide ions with silver nitrate yield precipitates of silver halides: AgCl forms a white precipitate, AgBr forms a cream precipitate, and AgI forms a yellow precipitate, all of which can be confirmed in the presence of nitric acid.

AgCl→ white p dissolves

AgBr→ no change

AgI→ no change

in ammonia solution, while AgBr and AgI are insoluble. AgCl dissolves

AgCl→ no change

AgBr→ cream p dissolves

AgI→ no change

In concentrated ammonia solution bromine dissovles rest stay same

Nax + H2SO4→ NaHSO4 + HX

musty white fumes

blue - red (litmus paper) Cl, Br, I present

The reaction of sodium halides (NaX) with sulfuric acid (H2SO4) produces sodium hydrogen sulfate (NaHSO4) and hydrogen halide (HX) gases, which are characterized by the release of musty white fumes and a color change in litmus paper from blue to red, indicating the presence of halides such as Cl, Br, and I.

2HX + H2SO4 → X2 + 2H2O + SO2

Br= brown gas

I= purple gas

orange- green (filter paper)

The reaction of hydrogen halides (HX) with sulfuric acid (H2SO4) produces halogen gases (X2), water (H2O), and sulfur dioxide (SO2), with bromine appearing as a brown gas and iodine as a purple gas.

SO2 + 6HX → H2S + 2H2O + 3X2

I= black solid

rotten egg smell

white-black (lead ethonate paper)

The reaction of sulfur dioxide (SO2) with hydrogen halides (HX) produces hydrogen sulfide (H2S), water (H2O), and halogen gases (X2), with iodine appearing as a black solid and the reaction characterized by a rotten egg smell.