NCERT Exemplar Solutions
Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice Questions
Question 11

Question.  11

In electrolysis of water (a decomposition reaction), the mole ratio of hydrogen and oxygen gases liberated is

(a)

1 : 1

(b)

2 : 1

(c)

4 : 1

(d)

1 : 2

Detailed Answer with Explanation:

\(2H_2O(l) → 2H_2(g) + O_2(g)\) ⇒ H:O = 2:1.