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Use Silver nitrate.

A yellow precipitate of silver iodide will form /

AgNO3 + I^- = AgI(s) + NO3^-

This is one of the classic tests for halogens.

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lenpollock

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Q: How do you test for presence of iodide ion?
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Related questions

What color flame test does the iodide solution give in flame test?

It is not the anions (e.g. iodide) that are responsible for the flame test color, rather the cations such as sodium ion, potassium ion and calcium ion give you different colors.


What is the formula for iodide?

Iodide ion : I-


Why does silver nitrate test provide negative result on the presence of a chloride ion?

Due to presence of chloride ion


Why test sodium peroxoborate with sulphuric acid and potassium iodide?

It's a qualaitative test to test for the presence of the borate anion in the solution


What is the lewis symbol for iodide ion?

Roughly, the iodide ion appears as shown below: .. - :I: ..


How do you test for the presence of iodine?

Testing for Iodide, I-Sodium iodide, NaI, is the source of iodide anion for this experiment.Reaction with bleach involves three steps. The brown color shows the presence of I3- ions.Hypochlorite ion yields chlorine:OCl- (aq) + Cl- (aq) + H2OCl2 (aq) + 2 OH-Chlorine reacts with iodide anion:Cl2 (aq) + 2 I- (aq)I2 (aq) + 2 Cl- (aq)Triiodide ion is formed:I2 (aq) + I- (aq) I3- (aq)Starch reacts with iodine and iodide to form a characteristic blue/black complex. A corn starch packing peanut is shown here.Silver ion reacts with iodide to form silver iodide, AgI.Ag+ (aq) + I- (aq) AgI (s)Reaction of iodide with sulfuric acid produces hydrogen sulfide gas and brown triiodide solution in a series of reactions:I- (aq) + H2SO4 (aq) HI (aq) + HSO4- (aq)8 HI + H2SO4 (aq) H2S (g) + 4 I2 (aq) + 4 H2OI2 (aq) + I- (aq) I3- (aq)Again, starch is used to confirm the presence of iodine and iodide.


What will the charge be on an ion formed from iodine?

as ions they are named Iodide.... charge is -1


Is iodide a metal?

No, iodide is an ion formed by the nonmetal iodine.


Is iodide an element?

No, it is an ion


What is the name of the ion I?

Iodide


What is the chemical reaction with silver nitrate and iodine is mixed together?

AgNO3 is essentially a positive Ag ion and negative NO3 polyatomic ion. it is a test for halide ions like I minus. So Ag+(charge) + I-(charge) -->AgI in which case a white precipitate should form, confirming the presence of iodide.


When iodine becomes an ion is the ion larger or smaller?

Iodine gains one electron to form iodide ion. The size of iodide ion is larger than the size of iodine atom.