Thermite' is a mixture of Fe2O3 and AI powder combined in the ratio of

Thermite is the mixture of Fe2O3 and Al. Due to great affinity of aluminium toward oxygen, it readily combines with oxygen. Hence, Goldsmith used Al to reduce metal oxides in extraction. In thermite the ratio of Fe2O3 and Al is taken 3:1 by weight.Fe2O3+2Al→2Fe+Al2O3(2×56+3×16=160)(2×27=54)

Thermite' is a mixture of Fe2O3 and AI powder combined in the ratio of

Thermite is the mixture of Fe2O3 and Al. Due to great affinity of aluminium toward oxygen, it readily combines with oxygen. Hence, Goldsmith used Al to reduce metal oxides in extraction. In thermite the ratio of Fe2O3 and Al is taken 3:1 by weight.Fe2O3+2Al→2Fe+Al2O3(2×56+3×16=160)(2×27=54)

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Thermite' is a mixture of Fe₂O₃and AI powder combined in the ratio of

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1 :2

3 :1

1 :1

1 : 3

answer is D.

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Detailed Solution

Thermite is the mixture of Fe₂O₃ and Al. Due to great affinity of aluminium toward oxygen, it readily combines with oxygen.
Hence, Goldsmith used Al to reduce metal oxides in extraction. In thermite the ratio of Fe₂O₃ and Al is taken 3:1 by weight.
Fe₂O₃+2Al→2Fe+Al₂O₃
(2×56+3×16=160)(2×27=54)