The mass of carbon anode consumed (giving only carbon dioxide) in the production of 270 kg of aluminium metal from bauxite by the Hall process is (Atomic mass: Al = 27):

Question

The mass of carbon anode consumed (giving only carbon dioxide) in the production of 270 kg of aluminium metal from bauxite by the Hall process is (Atomic mass: Al = 27): (A) 90 kg (B) 540 kg (C) 270 kg (D) 180 kg

Tardigrade Admin · Accepted Answer

2Al2O3 + 3C → Al + 3CO2 Gram equivalent of Al2O3 ≡ Gram equivalent of C. Now equivalent weight of Al = (27/3) = 9 Equivalent weight of C = (12/4) = 3 ( overset0C → overset+4CO2) No. of gram equivalent of Al = (270 × 103/9) = 30 × 103 Hence, No. of gram equivalent of C= 30 × 103 Again, No. of gram equivalent of C = ( textmass in gram/ textgram equivalent weight) ⇒ 30 × 103 = (mass/3) ⇒ mass = 90 × 103 g = 90 kg

Q. The mass of carbon anode consumed (giving only carbon dioxide) in the production of $270 k g$ of aluminium metal from bauxite by the Hall process is
(Atomic mass: $A l = 27$ ):

$90 k g$

$540 k g$

$270 k g$

$180 k g$

Q. The mass of carbon anode consumed (giving only carbon dioxide) in the production of 270kg of aluminium metal from bauxite by the Hall process is (Atomic mass: Al=27):

90kg

540kg

270kg

180kg

Q. The mass of carbon anode consumed (giving only carbon dioxide) in the production of $270 k g$ of aluminium metal from bauxite by the Hall process is
(Atomic mass: $A l = 27$ ):

$90 k g$

$540 k g$

$270 k g$

$180 k g$