Question

Steam + Solid X
Solid Y + Gas Z
(a) Identify X, Y and Z in the above reaction and complete the equation in
the language of Chemistry.
(b) Name the process by which gas Z is collected ?
(c) Draw a well labeled diagram of the experimental set up of the above
reaction​

Answer 1

Answer:

Explanation:

a) At cathode, H2​ is evolved and at anode O2​ is evolved.

b) At cathode, H+ ion takes two electron to convert itself into H2​ gas. 2 moles of H+ gives 1 mole of H2​.

2H+(aq)+2e−→H2​(g)

At anode, OH− ion releases two electrons to convert into water and O2​. 2 mole OH− gives 0.5 mole O2​, i.e why volume of one gas collected at one electron is double of another.

c) Acid is added to make the water conduct electricity as the distilled water is a non-conductor of electricity.