p-Block elementsHard
Question
27 gm of Al will react completely with how many grams of oxygen ?
Options
A.8 gm
B.16 gm
C.32 gm
D.24 gm
Solution
2Al + 
O2 → Al2O3
2 × 27gm →
gm of O2
27 gm ..........=
× 27
= 24 gm
O2 → Al2O32 × 27gm →
gm of O227 gm ..........=
× 27= 24 gm
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