Carbon reduces copper oxide to copper but not calcium oxide to calcium. Why?

Asked by Swaraj pati | 15th Feb, 2012, 09:24: AM

Expert Answer:

Carbon has electrode potential (reduction potential) lower (can reduce more easily) than Cu but higher than Ca, and hence, C can reduce Cu but not Ca. The reduction potentials are -

C-(0.13 V)

Cu-(0.16 V)

Ca-(-2.76 V)

Answered by  | 15th Feb, 2012, 09:44: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.