Q. 10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be:
A) 3 mol
B) 4 mol
C) 1 mol
D) 2 mol
Explanation
[Solution from source] 2H₂ + O₂ → 2H₂O. 10 g H₂ = 5 mol and 64 g O₂ = 2 mol; 2 mol O₂ needs only 4 mol H₂, so O₂ is limiting and gives 4 mol of water. Taking H₂ as limiting would wrongly give 5 mol. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.