Question

The simple ratio of volumes in which hydrogen and chlorine molecules combine to give HCl is ______.

Options

• 2 : 1

• 1 : 2

• 1 : 1

• 2 : 3

Answer 1

The simple ratio of volumes in which hydrogen and chlorine molecules combine to give HCl is 1 : 1.

Explanation:

From the chemical reaction \[\ce{H2 + Cl2 -> 2HCl}\], 1 volume of hydrogen gas reacts exactly with 1 volume of chlorine gas.