Question

Which of the following cations is not hydrolyzed in aqueous solution
(i) Mg2+
(ii) Ca²+
(iii) Na+
W17 (i), (ii)
(2) (ii), (iv)
\(3) (i), (ii), (iii), (iv)
on ♡
(iv) K+
S.c...
(10.6, cu
(4) (i), (ii), ()​

Answer 1

Answer:

Magnesium hydroxide (Mg(OH)_2)(Mg(OH)

2

) and calcium hydroxide (Ca(OH)_2)(Ca(OH)

2

) are sparingly soluble in water and are also weak bases. Therefore, Mg^{2+}Mg

2+

and Ca^{2+}Ca

2+

ion do not undergo hydrolysis in aqueous solutions . While Na^+Na

+

and K^+K

+

undergo hydrolysis as they are strong bases that is NaOHNaOH and KOHKOH.