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Class 10 Science Medium Mcq English Medium

Which of these correctly represents the balanced equation for the formation of water from hydrogen and oxygen gas?

Question
Which of these correctly represents the balanced equation for the formation of water from hydrogen and oxygen gas?
H2 + O2 -> H2O
2H2 + O2 -> 2H2O
H2 + O2 -> 2H2O
2H2 + 2O2 -> 2H2O
Answer
2H2 + O2 -> 2H2O
Detailed Explanation
Balancing oxygen requires two water molecules on the right, and balancing hydrogen then requires two hydrogen molecules on the left: 2H2 + O2 -> 2H2O.
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