Give the decreasing order of Ka value of the following compounds

Question

Give the decreasing order of Ka value of the following compounds (A) (I) > (IV) > (III) > (II) (B) (II) > (III) > (IV) > (I) (C) (I) > (III) > (II) > (IV) (D) (I) > (IV) > (II) >(III)

Tardigrade Admin · Accepted Answer

Therefore, the order of acidic character:
Aromatic > Non-aromatic > Anti-aromatic
But anti-aromaticity of (III) is more than (II) since(III) is more resonance stabilised than (II)
Therefore, the order of decreasing acidic
character or

K_{a}

value is (I)

>

(IV)

>

(III)

>

(II)

Q. Give the decreasing order of Ka​ value of the following compounds

(I) > (IV) > (III) > (II)

(II) > (III) > (IV) > (I)

(I) > (III) > (II) > (IV)

(I) > (IV) > (II) >(III)

Therefore, the order of acidic character: Aromatic > Non-aromatic > Anti-aromatic But anti-aromaticity of (III) is more than (II) since(III) is more resonance stabilised than (II) Therefore, the order of decreasing acidic character or Ka​ value is (I) > (IV) > (III) > (II)

Q. Give the decreasing order of $K_{a}$ value of the following compounds

Therefore, the order of acidic character:
Aromatic > Non-aromatic > Anti-aromatic
But anti-aromaticity of (III) is more than (II) since(III) is more resonance stabilised than (II)
Therefore, the order of decreasing acidic
character or $K_{a}$ value is (I) $>$ (IV) $>$ (III) $>$ (II)