Ionisation of which of the following will be | vedclass

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(A) The degree of ionisation of an acid in water depends on its acid dissociation constant $(K_a)$. $A$ higher $K_a$ value indicates a stronger acid,w

Vedclass · Accepted Answer

Picric acid

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(A) The degree of ionisation of an acid in water depends on its acid dissociation constant $(K_a)$. $A$ higher $K_a$ value indicates a stronger acid,which ionises to a greater extent. Picric acid ($2,4,6$-trinitrophenol) is a very strong organic acid due to the strong electron-withdrawing effect of three $-NO_2$ groups at the ortho and para positions,which stabilizes the phenoxide ion. Its acidity is comparable to that of strong mineral acids,making its ionisation in water significantly higher than that of carboxylic acids like acetic acid,formic acid,or benzoic acid.

Ionisation of which of the following will be maximum in water?

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