When a nitrate is warmed with zinc powder and an NaOH solution, a gas is evolved. Which of the following reagents will be turned brown by the gas?

When zinc metal is heated with caustic soda solution, the gas evolved is

Which of the following gas gives brown ppt. with Nessler's reagent ?

In which of the following reactions a brown coloured gas is evolved ?

Name the gas evolved in each of the following cases :Action of heat on copper nitrate.

A gas is evolved when white phosphours is heated with concentrated NaOH solution in an inert atmosphere of CO_(2) . Which one of the following statements about the gas in correct -

A salt, when warmed with zinc powder and an NaOH solution, gives a gas that turns a filter paper soaked with an alkaline solution of K_(2)[HgI_(4)] brown. The salt responds to the brown ring test when acetic acid is used in place of sulphuric acid. The anion present in the salt is:

A salt, when warmed with zinc powder and an NaOH solution, gives a gas that turns a filter paper soaked with an alkaline solution of K_(2)[HgI_(4)] brown. The salt responds to the brown ring test when acetic acid is used in place of sulphuric acid. The anion present in the salt is:

When an ammonium salt is warmed with sodium hydroxide solution, ammonia gas is evolved. State three ways in which you could identify this gas.