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

(a) 2H2 (l) + O2 (l)  ⟶ 2H2O(g)
(b) 2H2 (g) + O2 (l)  ⟶ 2H2O (l)
(c) 2H2 (g) + O2 (g)  ⟶ 2H2O (l)  
(d) 2H2 (g) +O2 (g)  ⟶ 2H2O (g)


Correct Answer: (c) 2H2 (g) + O2 (g)  2H2O (l)

Explanation: During the formation of water, both hydrogen and oxygen are in gaseous form and the product water is in liquid form. 

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Updated on: 10-Oct-2022

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