The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a function of temperature for some reaction of extractive metallurgy. To make the following reduction process spontaneous, temperature should be `ZnO+C rarr Zn+CO`A. `lt 1000&(@)C`B. `gt1000^(@)C`C. `lt 500^(@)C`D. `gt 500^(@)C " but " lt 1000^(@)C`

The points noted by arrows are melting and boiling points of the meta

1.	The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a function of temperature for some reaction of extractive metallurgy. To make the following reduction process spontaneous, temperature should be `ZnO+C rarr Zn+CO`A. `lt 1000&(@)C`B. `gt1000^(@)C`C. `lt 500^(@)C`D. `gt 500^(@)C " but " lt 1000^(@)C`
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