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Question: Which of the following processes involves smelting....

Which of the following processes involves smelting.

A

ZnCO3→ZnO+CO2\mathrm { ZnCO } _ { 3 } \rightarrow \mathrm { ZnO } + \mathrm { CO } _ { 2 }

B

Fe2O3+3C→2Fe+3CO\mathrm { Fe } _ { 2 } \mathrm { O } _ { 3 } + 3 \mathrm { C } \rightarrow 2 \mathrm { Fe } + 3 \mathrm { CO }

C

2PbS+3O2→2PbO+2SO22 \mathrm { PbS } + 3 \mathrm { O } _ { 2 } \rightarrow 2 \mathrm { PbO } + 2 \mathrm { SO } _ { 2 }

D

Al2O3⋅2H2O→Al2O3+2H2O\mathrm { Al } _ { 2 } \mathrm { O } _ { 3 } \cdot 2 \mathrm { H } _ { 2 } \mathrm { O } \rightarrow \mathrm { Al } _ { 2 } \mathrm { O } _ { 3 } + 2 \mathrm { H } _ { 2 } \mathrm { O }

Answer

Fe2O3+3C→2Fe+3CO\mathrm { Fe } _ { 2 } \mathrm { O } _ { 3 } + 3 \mathrm { C } \rightarrow 2 \mathrm { Fe } + 3 \mathrm { CO }

Explanation

Solution

Reduction with carbon is called smelting

Fe2O3+3C→2Fe+3CO\mathrm { Fe } _ { 2 } \mathrm { O } _ { 3 } + 3 \mathrm { C } \rightarrow 2 \mathrm { Fe } + 3 \mathrm { CO }