WorksheetsIdentification of acidic radicals
Total questions: 10
Worksheet time: 6mins
1\Dilute hydrochloric acid is an anion reagent:
Cl
No2
Br
No3
2/To differentiate between sulphur dioxide and carbon dioxide gas ,uses:
Acidified potassium dichromate solution
Sodium hydroxide solution
Sodium carbonate solution
Blue litmus paper moistened with water
3\Bacl2 is considered a reagent of anion:
So4
Po4
No3
A and B
4\We can differentiate practically between:(NaNo3 &Na2So4), by:
HCl only
H2 SO4 Only
A&B
None of both
5\The acidified potassium dichromate solution turns from orange into Green,that means that the product is:
Cr2 O3
Cr-3
Cr+3
Cr2 O7
Cr-4
6/ H2SO4 is considered a reagent of anion:
All off the above
7/If you have a mixture of (Baso4 &Ba3(po4)2 ) , which the following is correct?
They can be separated by adding water then filtration
They can be separated by adding dill.Hcl then filtration
Baso4 doesn't dissolve in water but it dissolves in dill.Hcl
Ba3 (po4)2 is sulble in water and dill.Hcl
Complete this equation:
Na2 So4(aq) +Bacl2 ->2………+Baso4
Nacl
Na2 co3
Na3 po4
Hcl
9\ Hcl is considered a reagent of anion:
Cl
So4
Br
Co3
10\ When conc.H2So4 is added to solid salt has a chemical formula (Na X ) a gas evolves then partially oxidized by conc.H2So4 into X2 ,the anion X is:
Cl
Br
S-2
NO-3
