test for cation and anions

Question 1

test ammonium ions

Answer 1

• add dilute NaOH and warm
  -add litmus paper
• turns paper red to blue

Question 2

test for carbonates

Answer 2

-bubble HCl through
-limewater or calcium hydroxide
= efferevsence, cloudy limewater

Question 3

test for sulfates

Answer 3

-add barium nitrate
= white ppt

Question 4

test for nitrates

Answer 4

-add NaOH
-add litmus paper
-turns red to blue

Question 5

test for aqueous chloride

Answer 5

-add silver nitrate = forms white ppt
-add dilute ammonia= dissolves

Question 6

tes for solid chloride

Answer 6

• add conc sulfuric acid
  -steamy fumes of hcl

Question 7

test for aqeuous bromide

Answer 7

• add acidifed silver nitrate= cream ppt
• add conc NH3= dissolves in excess

Question 8

test for solid bromide

Answer 8

• add conc sulfuric acid
• reddish brown fumes

Question 9

test for aquoes iodide

Answer 9

-add acidified silver nitrate= yellow ppt
-add conc NH3= doesnt dissolves turns white

Question 10

test solid iodide

Answer 10

• add conc sulfuric acid
  -steamy fumes of hydrogen iodide
  -rotten egg smell
  -black solid