A. 50.0 dm³
B. 84.0 dm³
C. 28.0 dm³
D. 56.0 dm³

Correct Answer:

Option D – 56.0 dm³

Explanation

1 mole of gas at s.t.p = 22.4
2.5 moles → 2.5 X 22.4 = 56.00 dm³

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