1.

Whichofthefollowingreactionstakingplacein theblastfurnase duringextractionof iron isendothermic ?

Answer»

` CaCO_ 3toCa O + CO _ 2`
` 2 C +O_ 2to2CO`
` C +O_ 2toCO _ 2`
`Fe_ 2O_ 3+3 COto2 FE+3 CO _ 2`

Answer :A


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