Question

A compound X used for drinking has a pH of 7. Its acidified solution undergoes decomposition in the presence of electricity to produce gases Y and Z. Y is highly combustible, whereas Z is a supporter of combustion. Identify X, Y, Z, and write the formula of the reaction involved.

a) X = Water (H₂O), Y = Hydrogen (H₂), Z = Oxygen (O₂)
b) X = Hydrochloric Acid (HCl), Y = Hydrogen (H₂), Z = Chlorine (Cl₂)
c) X = Sodium Hydroxide (NaOH), Y = Hydrogen (H₂), Z = Oxygen (O₂)
d) X = Acetic Acid (CH₃COOH), Y = Methane (CH₄), Z = Carbon Dioxide (CO₂)

Answer 1

The compound X used for drinking with a pH of 7 is water (H2O). The acidified solution of X produces hydrogen (H2) and oxygen (O2) gases through electrolysis. The reaction equation is 2H2O(l) → 2H2(g) + O2(g).

Step-by-step explanation:

The compound X used for drinking, with a pH of 7, is Water (H2O). When its acidified solution undergoes decomposition in the presence of electricity, it produces gases Y = Hydrogen (H2) and Z = Oxygen (O2). The formula of the reaction involved is 2H2O(l) → 2H2(g) + O2(g).