\({({C_6}{H_5})_3}\dot C\, > \,{({C_6}{H_5})_2}\dot CH\, > \,{(C{H_3})_3}\dot C\, > \,{(C{H_3})_2}\dot CH\)
The stabilisation of first two is due to resonance and last two is due to inductive effect.


$(II)$ $CH_2 = CH - COOH $ અને
$(III)$ $ HC \equiv C - COOH$
એસિડોની ગોઠવણી ઘટતી એસિડીકતા ક્રમમાં ગોઠવો.
$(A)\, CH_3 - CH_2 - C \equiv C^-$ $(B) \,CH_3 -CH_2 - S^-$
$(C) \,CH_3 - CH_2 - CO^-_2$ $(D)\, CH_3 -CH_2 - O^-$

$[Nu^-=(A) \,PhO^-, (B)\,AcO^-, (C)\, HO^-, (D)\, CH_3O^-]$