64.2dm3
33.6dm3
11.2dm3
3.73dm3
Correct answer is B
C2H4(g) + 3O2(g) \(\to\) 2CO2(g) + 2H2O(l)
1 mole of ethene required 3 moles of O2
28g of ethene required 3 x 22.4dm3 of O2
14g will require \(\frac{14 \times 3 \times 22.4dm^3}{28}\)
= 33.6dm3
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