1.

Although carbon and hydrogen are better reducing agents but they are not used to reduce metallic oxides at high temperatures. Why?

Answer»

Solution :This is due to formation of metal carbides and metal HYDRIDES at high temperatures.
`CaO + 3C OVERSET(2273K)(rarr) + CaC_2 + CO`
`Ca + H_2 to CaH_2`


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