Hydrogen can be prepared by

Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with : a monovalent metal

Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with : a divalent metal.

Hydrogen can be prepared with the metal zinc by using : alkali Give an equation in each case.

Hydrogen can be prepared with the metal zinc by using : water Give an equation in each case.

Hydrogen can be prepared with the metal zinc by using : acid Give an equation in each case.

The following statements are true under certain conditions. Mention condition in each case. (i) Hydrogen reacts with nitrogen to form ammonia. (ii) Hydrogen can be prepared from water at ordinary temperature. (iii) A metal will liberate hydrogen by its reaction with dilute H_(2)SO_(4)

Hydrogen from HCI can be prepared by :

Hydrogen gas is prepared in the laboratory by