1.

In the Bacyer's process, the leaching of alumina is done by using

Answer»

`Na_(2)CO_(3)`
`NaOH`
`SiO_(2)`
CaO

Solution :In Baeyer.s process, POWERED ORE of alumina (BAUXITE) is heated with conc. NaOH.
`Al_(2)O_(3)+2NaOH+3H_(2)Orarr 2Na[Al(OH)_(4)]`
`2Na[Al(OH)_(4)]+2CO_(2)rarrAl_(2)O_(3).xH_(2)O+2NaHCO_(3)`
`Al_(2)O_(3).xH_(2)O overset(1470K)rarr Al_(2)O_(3)+xH_(2)O`


Discussion

No Comment Found

Related InterviewSolutions