NCERT Exemplar Solutions
Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice QuestionsQuestion 17
Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice Questions
Question. 17
Which equation correctly shows states at reaction temperature?
(a) \(2H_2(l)+O_2(l)→2H_2O(g)\) (b) \(2H_2(g)+O_2(l)→2H_2O(l)\) (c) \(2H_2(g)+O_2(g)→2H_2O(l)\) (d) \(2H_2(g)+O_2(g)→2H_2O(g)\)
(a)
(a)
(b)
(b)
(c)
(c)
(d)
(d)
Detailed Answer with Explanation:
Hydrogen & oxygen are gases; water produced is liquid under ordinary conditions: \(2H_2(g)+O_2(g)→2H_2O(l)\).