In lake test for Al3+ ions, there is the formation of coloured ‘floating lake’. It is due to:

Question. In lake test for Al₃⁺ ions, there is the formation of coloured ‘floating lake’. It is due to:

(a)Absorption of litmus by [Al(OH)₄]^–

(b)Absorption of litmus by Al(OH)₃

(c)Adsorption of litmus by [Al(OH)₄]^–

(d) Adsorption of litmus by Al(OH)₃

Answer: (d) Adsorption of litmus by Al(OH)₃