Number of compounds which is/are only acidic:
`Be(OH)_(2), Mg(OH)_(2), Al(OH)_(3), B(OH)_(3), Tl(OH)_(3), Ga(OH)_(3)`

Al(OH)_(3) is

Al (OH)_3 to

How many compounds show amphoteric nature amongst following B_(2)O_(3),TI_(2)O_(3),Al(OH)_(3),Ga(OH)_(3),Al_(2)O_(3),Ga_(2)O_(3),NaAlO_(2),Sr(OH)_(2),Cr_(2)O_(3)

How many compounds show amphoteric nature amongst following B_(2)O_(3),TI_(2)O_(3),Al(OH)_(3),Ga(OH)_(3),Al_(2)O_(3),Ga_(2)O_(3),NaAlO_(2),Sr(OH)_(2),Cr_(2)O_(3)

Classify them into basic and acidic hydroxides: NaOH, Mg(OH)_2,Al(OH)_3,Be(OH)_2,B(OH)_3

How many of the following hydroxides are soluble in excess NaOH solution? Fe(OH)_(3), Al(OH)_(3),Zn(OH)_(3),Zn(OH)_(2), Ni(OH)_(2),Mn(OH)_(2), Sn(OH)_(2), Sn(OH)_(2), Cu(OH)_(2)

2Na[Al(OH)_(4)]+CO_(2)to2Al(OH)_(3)darr+Na_(2)CO_(3)

2Na[Al(OH)_(4)]+CO_(2)to2Al(OH)_(3)darr+Na_(2)CO_(3)

2Na[Al(OH)_(4)]+CO_(2)to2Al(OH)_(3)darr+Na_(2)CO_(3)