Tests For Anions Flashcards
1
Q
What are anions?
A
- negative ions
- non metal ions
2
Q
How do you test for carbonates?
A
- metal carbonate added to dilute acid
- gas formed & bubbled into limewater
- linewater milky
3
Q
What is the ion for a carbonate?
A
CO3(2-)
4
Q
How do you test for sulfates?
A
- acidify with dilute HCl
- add barium chloride
- white precipitation forms
5
Q
What is the ion for sulfate?
A
SO4(2-)
6
Q
How do you test for halides?
A
- acidify with nitric acid (HNO3)
- add silver nitrate
- precipitate forms
7
Q
Halide test: what colour does chlorine form?
A
White
8
Q
What colour does bromine form?
A
Cream precipitate
9
Q
Whay colour does iodine go?
A
Yellow precipitate
