1.

Which of the following reactions occur during calcination ?

Answer»

`CaCO_3 to CaO + CO_2` 
`2FeS_2 + 11/2O_2 to Fe_2O_3 + 4SO_2`
`Al_2O_3.xH_2O to Al_2O_3 + xH_2O`
`ZnS + 3/2 O_2 to ZnO + SO_2` 

SOLUTION :CALCINATION is conversion of CARBONATE ORE or hydrated ore in to oxide ores in LIMITED supply of air.


Discussion

No Comment Found