What is the action of the Nessler's reagent on ammonia?
Brown ppt.
Blue ppt.
Black ppt.
Green ppt.
Explanation for correct option
(A) Brown ppt.
Nessler's reagent
Test for ammonia
2K2HgI4(Potassiumtetraiodomercurate(II))+3KOHPotassiumHydroxide+NH3Ammonia→OHg2.NH2IIodideofMillon'sbaseBrownppt.+7KIPotassiumIodide+2H2OWater
Explanation for incorrect options
Therefore the correct option is (A) Brown ppt.