1.

Which ofthe following reaction isan exampleofcalcinationprocess ?

Answer»

` 2Ag +2HCL+ [O] TO2AG Cl +H_2 O `
`2 Zn+O_2to2 ZnO `
` 2 Zn S +3O_2to2 ZnO+2 SO _2`
` Mg CO_3toMgO+CO_ 2`

SOLUTION :Conversion of carbonateinto itsoxideby heatinginabsenceofair is calledcalcination.


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