WorksheetsIGCSE test for anions
Total questions: 7
Worksheet time: 5mins
Choose a test and a result for carbonate (CO32-)
ans format : test, result
Test:
A : add dilute acid
B : acidify with dilute nitric acid, then add aqueous silver nitrate
C : add aqueous sodium hydroxide, then aluminium foil; warm carefully
D : acidify, then add aqueous barium nitrate
E : add dilute hydrochloric acid, warm gently and test for the presence of sulfur dioxide
Results:
F : effervescence, carbon dioxide produced
G : white ppt
H : cream ppt
I : yellow ppt
J : ammonia produced
K : sulfur dioxide produced will turn acidified aqueous potassium manganate(VII) from purple to colourless
(a)
Choose a test and a result for chloride (Cl-)
ans format : test, result
Test:
A : add dilute acid
B : acidify with dilute nitric acid, then add aqueous silver nitrate
C : add aqueous sodium hydroxide, then aluminium foil; warm carefully
D : acidify, then add aqueous barium nitrate
E : add dilute hydrochloric acid, warm gently and test for the presence of sulfur dioxide
Results:
F : effervescence, carbon dioxide produced
G : white ppt
H : cream ppt
I : yellow ppt
J : ammonia produced
K : sulfur dioxide produced will turn acidified aqueous potassium manganate(VII) from purple to colourless
(a)
Choose a test and a result for bromide (Br-)
ans format : test, result
Test:
A : add dilute acid
B : acidify with dilute nitric acid, then add aqueous silver nitrate
C : add aqueous sodium hydroxide, then aluminium foil; warm carefully
D : acidify, then add aqueous barium nitrate
E : add dilute hydrochloric acid, warm gently and test for the presence of sulfur dioxide
Results:
F : effervescence, carbon dioxide produced
G : white ppt
H : cream ppt
I : yellow ppt
J : ammonia produced
K : sulfur dioxide produced will turn acidified aqueous potassium manganate(VII) from purple to colourless
(a)
Choose a test and a result for iodide (I-)
ans format : test, result
Test:
A : add dilute acid
B : acidify with dilute nitric acid, then add aqueous silver nitrate
C : add aqueous sodium hydroxide, then aluminium foil; warm carefully
D : acidify, then add aqueous barium nitrate
E : add dilute hydrochloric acid, warm gently and test for the presence of sulfur dioxide
Results:
F : effervescence, carbon dioxide produced
G : white ppt
H : cream ppt
I : yellow ppt
J : ammonia produced
K : sulfur dioxide produced will turn acidified aqueous potassium manganate(VII) from purple to colourless
(a)
Choose a test and a result for nitrate (NO3-)
ans format : test, result
Test:
A : add dilute acid
B : acidify with dilute nitric acid, then add aqueous silver nitrate
C : add aqueous sodium hydroxide, then aluminium foil; warm carefully
D : acidify, then add aqueous barium nitrate
E : add dilute hydrochloric acid, warm gently and test for the presence of sulfur dioxide
Results:
F : effervescence, carbon dioxide produced
G : white ppt
H : cream ppt
I : yellow ppt
J : ammonia produced
K : sulfur dioxide produced will turn acidified aqueous potassium manganate(VII) from purple to colourless
(a)
Choose a test and a result for sulfate (SO42-)
ans format : test, result
Test:
A : add dilute acid
B : acidify with dilute nitric acid, then add aqueous silver nitrate
C : add aqueous sodium hydroxide, then aluminium foil; warm carefully
D : acidify, then add aqueous barium nitrate
E : add dilute hydrochloric acid, warm gently and test for the presence of sulfur dioxide
Results:
F : effervescence, carbon dioxide produced
G : white ppt
H : cream ppt
I : yellow ppt
J : ammonia produced
K : sulfur dioxide produced will turn acidified aqueous potassium manganate(VII) from purple to colourless
(a)
Choose a test and a result for sulfite (SO32-)
ans format : test, result
Test:
A : add dilute acid
B : acidify with dilute nitric acid, then add aqueous silver nitrate
C : add aqueous sodium hydroxide, then aluminium foil; warm carefully
D : acidify, then add aqueous barium nitrate
E : add dilute hydrochloric acid, warm gently and test for the presence of sulfur dioxide
Results:
F : effervescence, carbon dioxide produced
G : white ppt
H : cream ppt
I : yellow ppt
J : ammonia produced
K : sulfur dioxide produced will turn acidified aqueous potassium manganate(VII) from purple to colourless
(a)
