Question

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

Answer 1

The three ways in which the gas can be identified are:
a) It gives dense white fumes when a rod dipped in HCl is held in it.
b) It turns moist red litmus paper blue
c) It turns phenophthalein solution pink.