Question

Q6. Metals form basic hydroxides. Which of the following metal hydroxides is the least basic? (a) Mg(OH)2 (b) Ca(OH)2 (c) Sr(OH)2 (d) Ba(OH)2​

Answer 1

Explanation:

(a) As the ionization enthalpy increases from Mg →Ba, the M – O bond becomes weaker and weaker down the group and hence basicity increases down the group. Thus, Mg(OH)2 is least basic.

Answer 2

Explanation:

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