Question 17 - MCQs from NCERT Exemplar - Chapter 1 Class 10 - Chemical Reactions and Equations

In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?

(A) 2H ₂ (l) + O ₂ (l) → 2H ₂ O(g)

(B) 2H ₂ (g) + O ₂ (l) → 2H ₂ O(l)

(C) 2H ₂ (g) + O ₂ (g) → 2H ₂ O(l)

(D) 2H ₂ (g) + O ₂ (g) → 2H ₂ O(g)

Answer

2H ₂ (g) + O ₂ (g) → 2H ₂ O(l)

Here,

• Both hydrogen and oxygen are gases and they combine to form water which is liquid.

So, the correct answer is (c)