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Nucleophilic Substitution Reaction

13. For the f...

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13. For the formation of cr2O3 and Al2O3 value of G are -540 KJmole-1 and -827Kmole-1 respectively. What is the possibility for reaction Cr2O3 by Al 1.reduction of Cr2O3 by Al will take place 2. Oxidation of cr2o3 by Al will take place 3. Both of these 4. None of these

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△ G^{\circ}

C r_{2} O_{3}

A l_{2} O_{3}

- 540 k J m o l^{- 1}

- 827 k J m o l^{- 1}

C r_{2} O_{3}

A l

C r_{2} O_{3}

A l_{2} O_{3}

Δ_{f} G^{o}

^{- 1}

^{- 1}

C r_{2} O_{3}

C r_{2} O_{3}

A l_{2} O_{3}

Δ_{f} G

- 540 k J {mol}^{- 1}

- 827 k J {mol}^{- 1}

C r_{2} O_{3}

A l

Δ_{f} G^{0}

C r_{2} O_{3}

- 540 k J m o l^{- 1}

A l_{2} O_{3}

- 827 k J m o l^{- 1}

C r_{2} O_{3}

A l

The value of for formation of Cr₂O₃is − 540 kJmol⁻¹ and that of Al₂ O₃ is − 827 kJmol⁻¹. Is the reduction of Cr₂O₃ possible with Al?

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