tests for the endings

Question 1

Ammonium

Answer 1

NaOH, gently heat, hold damp red litmus over Production of ammonia gas, litmus turns blue

Question 2

Hydroxide

Answer 2

Red litmus paper / UI paper Turns blue

Question 3

Carbonate

Answer 3

HCl, test gas with calcium hydroxide solution
(limewater)
Effervescence, CO2 gas produced, limewater
turns cloudy

Question 4

Sulfate

Answer 4

HCl then barium chloride Production of white precipitate

Question 5

Chloride (

Answer 5

aq) Nitric acid, then silver nitrate
Add dilute ammonia solution
Production of white precipitate
Precipitate dissolves

Question 6

Iodide

Answer 6

(aq) Nitric acid, then silver nitrate
Add concentrated ammonia solution
Production of pale yellow precipitate
No visible change

Question 7

Chloride

Answer 7

(solid) Add concentrated H2SO4
Test gas evolved with damp blue litmus paper
Effervescence
Litmus turns red (HCl produced)

Question 8

hi

Answer 8

(solid) Add concentrated H2SO4
Test gas evolved with damp blue litmus paper
Effervescence
Litmus turns red (HCl produced)

Question 9

Bromide

Answer 9

(solid) Add concentrated H2SO4
Test gas evolved with filter paper dipped in
acidified potassium dichromate solution
Effervescence, brown gas produced (Br2),
solution turns red/brown

Question 10

Iodide

Answer 10

(solid) Add concentrated H2SO4
Test gas evolved with filter paper dipped in
lead nitrate solution
Brown gas produced (Br2), solution turns
red/brown
Paper turns black