If \( 1.5 \) moles of oxygen combines with \( \mathrm{Al} \) to form \( \mathrm{Al}_{2} \mathrm{...

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If \( 1.5 \) moles of oxygen combines with \( \mathrm{Al} \) to form \( \mathrm{Al}_{2} \mathrm{O}_{3} \), the mass of \( \mathrm{Al} \) in \( \mathrm{g} \) [Atomic mass of \( \mathrm{Al}=27 \) ] used in the reaction is
(a) \( 2.7 \)
(b) 54
(c) \( 40.5 \)
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