JEE Main2016ChemistryGeneral Organic ChemistryActual
Sodium extract is heated with concentrated H N O 3 before testing for halogens because :
Options
- AA g 2 S and AgCN are soluble in acidic medium.
- BSilver halides are totally insoluble in nitric acid.
- CS 2 - and C N - , if present, are decomposed by conc. H N O 3 and hence do not interfere in the test.
- DAg reacts faster with halides in acidic medium
Correct answer
C. S 2 - and C N - , if present, are decomposed by conc. H N O 3 and hence do not interfere in the test.
Step-by-step solution
S 2 - and C N - ions if present are decomposed by conc. H N O 3 and hence do not interfere in the test.