The correct order of acid strength of the following compound is

(I)

(II)

(III)

Give the correct order of increasing acidity of the following compounds -

Set the following compounds in increasing order of their ${\mathrm{pK}}_{\mathrm{a}}$ values :-

$\left(\mathrm{x}\right)$

$\left(\mathrm{z}\right)$ ${\mathrm{CH}}_3-\mathrm{OH}$

Which nitrogen in LSD (Lysergic acid diethylamide) is more basic?