1.

Which of the following is an amphoteric hydroxide ?

Answer»

`Be(OH)_(2)`
`Sr(OH)_(2)`
`Ca(OH)_(2)`
`Mg(OH)_(2)`

Solution :`Be(OH)_(2)` amphoteric in NATURE, since it can react both with acid and BASE
`Be(OH)_(2) +2HCl to BeCl_(2) +2H_(2)O`
`Be(OH)_(2) +2NAOH to Na_(2)[Be(OH)_(4)]`


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