How `NH_3` is detected using Nessler's regent?

How NH_(3) is detected using nessler's reagent?

How is hydrogen detected?

How NH_3 is recovered in solvey process? State one use of sodium amalgum.

How can you detect boric acid?

Explain why chlorine but not nitrogen in hydroxylamine hydrochloride (NH_(2)OH*HCI) can be detected by Lassaigne's test.

What is Nessler's reagent ? Where is it used ?

How will you detect the starting and ending of a period in the periodic table?

How many of the following substances are used as the raw materials in Solvay process ? Na_2SO_4.NaCl,NH_3,CaCO_3,CaCl_2,Ca(OH)_2,Na_2CO_3