Carbon can reduce copper oxide to copper but not CaO to Ca. Why?

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asked Jan 17, 2018 in Chemistry by sameer (82,980 points) 5 11 37
Carbon can reduce copper oxide to copper but not CaO to Ca. Why?

1 Answer

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answered Jan 17, 2018 by faiz (82,347 points) 6 6 11
selected Jan 25, 2018 by Vikash Kumar
 
Best answer

C is a strong reducing agent and can reduce CuO as follows:
 CuO+C----->Cu+CO
Ca is much more reactive than Cu and has 
greater affinity for oxygen than C has. So, carbon cannot reduce CaO to Ca.

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