Advertisements
Advertisements
प्रश्न
What is the action of the following reagents on ammonia :
Nessler's reagent
Advertisements
उत्तर
With Nessler’s reagent ( an alkaline solution of K2Hgl4 ) ammonia and ammonium salts give brown precipitate due to formulation of Million’s base.
\[\ce{\underset{\text{Nessler's reagent }}{2K2HgI4} + NH3 + 3KOH -> \underset{\text{(Iodide of million’s base)}}{H2N–Hg–O–Hg–I} + 7KI + 2H2O}\]
APPEARS IN
संबंधित प्रश्न
Describe the laboratory method of preparation of ammonia
What is the action of Excess of air on ammonia ?
How does ammonia react with a solution of Cu2+?
How is ammonia manufactured industrially?
What happens when (NH4)2Cr2O7 is heated? Write the equations.
What is the action of Na Metal on ammonia?
What is the action of the following reagents on ammonia :
Sodium metal
What is Nessler’s reagent?
In laboratory ammonia is prepared by heating:
Which compound is used in the preparation of caprolactam?
Ammonia act as a Lewis base because nitrogen has ____________.
On heating ammonium dichromate and barium azide separately we get ______.
In Haber’s process for the manufacture of NH3:
Ammonia on reaction with hypochlorite anion can form:
The shape of ammonia molecule is ____________.
When ammonia is heated with cupric oxide, a molecule of ammonia will ____________.
Ammonia is generally manufactured for fertilizers by the reaction:
Which one of the following is not a use of ammonia?
In qualitative analysis when \[\ce{H2S}\] is passed through an aqueous solution of salt acidified with dil. \[\ce{HCl}\], a black precipitate is obtained. On boiling the precipitate with dil. \[\ce{HNO3}\], it forms a solution of blue colour. Addition of excess of aqueous solution of ammonia to this solution gives ______.
A brown ring is formed in the ring test for \[\ce{NO3^{-}}\] ion. It is due to the formation of ______.
In the preparation of HNO3, we get NO gas by catalytic oxidation of ammonia. The moles of NO produced by the oxidation of two moles of NH3 will be ______.
\[\ce{PCl5}\] reacts with finely divided silver on heating and a white silver salt is obtained, which dissolves on adding excess aqueous \[\ce{NH3}\] solution. Write the reactions involved to explain what happens.
