Hydrogen sulphide is prepared in____apparatus.

Hydrogen peroxide was first prepared by __________ in _______

How can hydrogen peroxide be prepared in the laboratory? What is the limitation of this process?

Crescograph was prepared by

What happens when hydrogen sulphide is added to acidified potassium dichromate solution ?

How is hydrogen chloride prepared in the laboratory? HCI gas cannot be dired with CaO, KOH or P_(2)O_(5) . Explain.

When hydrogen sulphide is passed through a solution of K_(2)Cr_(2)O_(7) acidified with dilute H_(2)SO_(4) , the colour of the solution turns

Egg apparatus is

What is juxtglomerular apparatus.