s-Block ElementsHard

Question

If NaOH is added to an aqueous solution of Al3+ ions, a white precipitate appears and on adding excess of NaOH, the precipitate dissolves. In the solution, aluminium exists in the :

Options

A.anionic part
B.cationic part
C.both in anionic and cationic part
D.colloidal form

Solution

Al3+ + 4OH- (from NaOH) →  [Al(OH)4]-
So aluminium exists in the anionic part.

Create a free account to view solution

View Solution Free
Topic: s-Block Elements·Practice all s-Block Elements questions

More s-Block Elements Questions

An inorganic compound which on heating first melts, then solidifies and liberates a gas, is...Which of the following statement (s) is/are true ?...BeF2 is soluble in water, whereas, the fluorides of other alkaline earth metals are insoluble because of :...The first ionisation potential (eV) of Be and B respectively are :...What are the products formed when an aqueous solution of magnesium bicarbonate is boiled ?...