Which among the following halogen is insoluble in ammonium hydroxide?
Fluorine
Bromine
Chlorine
Iodine
Which method is used for the detection of oxygen in organic compound?
Kjedahl
Carius
Direct method
Indirect method
What will give the prussion blue color in the test of nitrogen?
Sodium ferrocyanide
Ferric sulphocyanide
Sodium
None of these
