Test For Anions

Question 1

How to test for Carbonates and what results will be the product.

Answer 1

Add dilute acids and effervescence will be observed.

Carbon dioxide gas is produced can test with limewater or calcium carbonate

Question 2

How to test for chlorides and what are the products.

Answer 2

Acidify with dilute nitric acid and add silver nitrate. A white precipitate will form ( silver chloride)

Question 3

How to test for nitrates and what are the products.

Answer 3

Add aqueous sodium hydroxide then aluminium foil; warm carefully.
Ammonia gas will produce (test for ammonia gas using damp red litmus paper it will turn blue)

Question 4

How to test for sulfates and what are the products.

Answer 4

Acidify with dilute nitric acid and add aqueous barium nitrate.
A white precipitate (barium sulfate) will form.