Tests for Halide Ions

Question 1

how do you test for chloride, bromide, iodide halide ions?

Answer 1

Add dilute NH3 (nitric acid) followed by silver nitrate solution and observe for a precipitate

Question 2

Which ion doesn’t form a precipitate with AgNO3?

Answer 2

F

Question 3

What precipitate is formed when I⁻ ions react with silver nitrate solution?

Answer 3

Pale yellow

Question 4

What precipitate is formed when Br⁻ ions react with silver nitrate solution?

Answer 4

cream

Question 5

What precipitate is formed when Cl⁻ ions react with silver nitrate solution?

Answer 5

white

Question 6

Which halide ion is the most soluble in ammonia solution?

Answer 6

Cl-

Question 7

Which silver halide dissolves in dilute ammonia solution?

Answer 7

silver chloride

Question 8

Which silver halide does not dissolve in dilute ammonia solution but dissolves in concentrated ammonia solution?

Answer 8

silver bromide

Question 9

Which silver halide doesn’t dissolve in any concentration of ammonia?

Answer 9

silver iodide

Question 10

Do all metal halides form precipitate with silver nitrate solution?

Answer 10

No, F- does not since it forms a soluble product

Question 11

What is the point of adding the dilute nitric acid?

Answer 11

Gets rid of any extra ions which may react and form a confusing precipitate